diff --git a/TODO b/TODO
index b472a7d..32a17fb 100644
--- a/TODO
+++ b/TODO
@@ -1,26 +1,37 @@
 ## GENERAL
 
-    * face locations:
-        START FORM SCRATCH so all images have face_locn data
-        right now GenThumb is in shared, and does width, height as well --> in person.py BUT need this for pa_job_manager
-        -- show face locns in viewer.html [DONE]
-            * how hard would bootstrap 5 be, and use form-switch instead of 'badge'
+    * Face matching:
+        - upgrade to face distance per face per file
+            - so we dont get 2 x same face in one file, and if it could match say Cam and Mich for 1 face, take the higher match, not the first one to be over the threshold
+        - allow for threshold/settings to be tweaked from the GUI?
+            ---> at least settings for default value (back to 0.6 / 0.5?)
+            ---> with override table to do per file / per face?
+        - face locations:
+            START FORM SCRATCH so all images have face_locn data
+        - algo:
+            for each face (even known) in image
+                foreach refimg
+                    get face_distance
+            sort by face_distance
+            for each face
+                connect lowest score with that face (for this file)
+                this means this face is no longer 'free' for a match
+                if (sorted) face distance > 0.55 stop as no further 'matches'
+        - use cnn model (check ftst.py) for ref images, and potentially as a setting to check images without a face?
+        - or always?
+            -- would CUDA be useful here? (which is faster say an old 730 or the AMD cpu?)
 
-    * allow for threshold/settings to be tweaked from the GUI
-        - it would be good to then say, just run the scanner against this image or maybe this DIR, to see how it IDs ppl
-        ---> settings for default value
-        ---> override table to do per file combos?
-
-    * refimg 
-        - remove AI menu from top-level -> make a sub-of Person, and just have Match or AI
+    
 
     * viewer:
         can we make it preload next/prev images, and only reload the image div when we jump?  to make arrow-based nav much faster
 
     * remove dirs after the duplicate cleanup removes all its content
-    * fix up logging in general
+
     * could look to remove the hand fixing of json.loads of array data --> seems you can make your own datatype in the ORM, and it can do the conversion every time you use it
         - https://stackoverflow.com/questions/28143557/sqlalchemy-convert-column-value-back-and-forth-between-internal-and-database-fo
+
+    * fix up logging in general
     * comment your code
     * more OO goodness :)
 
diff --git a/face.py b/face.py
index 78de3f0..d7432a6 100644
--- a/face.py
+++ b/face.py
@@ -2,7 +2,6 @@ from main import db, app, ma
 from sqlalchemy import Sequence
 from sqlalchemy.exc import SQLAlchemyError
 
-
 class Face(db.Model):
     __tablename__ = "face"
     id = db.Column(db.Integer, db.Sequence('face_id_seq'), primary_key=True )
@@ -17,6 +16,7 @@ class FaceFileLink(db.Model):
     __tablename__ = "face_file_link"
     face_id = db.Column(db.Integer, db.ForeignKey("face.id"), primary_key=True )
     file_eid = db.Column(db.Integer, db.ForeignKey("file.eid"), primary_key=True )
+    model_used = db.Column(db.Integer, db.ForeignKey("ai_model.id"), primary_key=True )
 
     def __repr__(self):
         return f"<face_id: {self.face_id}, file_eid={self.file_eid}"
@@ -25,6 +25,8 @@ class FaceRefimgLink(db.Model):
     __tablename__ = "face_refimg_link"
     face_id = db.Column(db.Integer, db.ForeignKey("face.id"), primary_key=True )
     refimg_id = db.Column(db.Integer, db.ForeignKey("refimg.id"), primary_key=True )
+    model_used = db.Column(db.Integer, db.ForeignKey("ai_model.id"), primary_key=True )
+    face_distance = db.Column(db.Integer)
 
     def __repr__(self):
         return f"<face_id: {self.face_id}, refimg_id={self.refimg_id}"
diff --git a/pa_job_manager.py b/pa_job_manager.py
index 54dc564..be348ee 100644
--- a/pa_job_manager.py
+++ b/pa_job_manager.py
@@ -227,6 +227,14 @@ class Refimg(Base):
     def __repr__(self):
         return f"<id: {self.id}, fname: {self.fname}, created_on: {self.created_on}>"
 
+class AIModel(Base):
+    __tablename__ = "ai_model"
+    id = Column(Integer, primary_key=True )
+    name = Column(String)
+
+    def __repr__(self):
+        return f"<id: {self.id}, name: {self.name}>"
+
 class Face(Base):
     __tablename__ = "face"
     id = Column(Integer, Sequence('face_id_seq'), primary_key=True )
@@ -240,6 +248,7 @@ class FaceFileLink(Base):
     __tablename__ = "face_file_link"
     face_id = Column(Integer, ForeignKey("face.id"), primary_key=True )
     file_eid = Column(Integer, ForeignKey("file.eid"), primary_key=True )
+    model_used = Column(Integer, ForeignKey("ai_model.id") )
 
     def __repr__(self):
         return f"<face_id: {self.face_id}, file_eid={self.file_eid}"
@@ -248,6 +257,8 @@ class FaceRefimgLink(Base):
     __tablename__ = "face_refimg_link"
     face_id = Column(Integer, ForeignKey("face.id"), primary_key=True )
     refimg_id = Column(Integer, ForeignKey("refimg.id"), primary_key=True )
+    model_used = Column(Integer, ForeignKey("ai_model.id") )
+    face_distance = Column(Integer)
 
     def __repr__(self):
         return f"<face_id: {self.face_id}, refimg_id={self.refimg_id}"
diff --git a/settings.py b/settings.py
index a06b74b..5ece10b 100644
--- a/settings.py
+++ b/settings.py
@@ -12,7 +12,7 @@ from flask_login import login_required, current_user
 ################################################################################
 # Class describing AI_MODEL in the database, and via sqlalchemy, connected to the DB as well
 ################################################################################
-class AI_Model(db.Model):
+class AIModel(db.Model):
     __tablename__ = "ai_model"
     id = db.Column(db.Integer, primary_key=True )
     name = db.Column(db.String)
@@ -20,6 +20,7 @@ class AI_Model(db.Model):
     def __repr__(self):
         return f"<id: {self.id}, name: {self.name}>"
 
+
 ################################################################################
 # Class describing Settings in the database, and via sqlalchemy, connected to the DB as well
 ################################################################################
@@ -53,7 +54,7 @@ class SettingsForm(FlaskForm):
     import_path = StringField('Path(s) to import from:', [validators.DataRequired()])
     storage_path = StringField('Path to store sorted images to:', [validators.DataRequired()])
     recycle_bin_path = StringField('Path to temporarily store deleted images in:', [validators.DataRequired()])
-    default_model = SelectField( 'default_model',  choices=[(c.id, c.name) for c in AI_Model.query.order_by('id')] )
+    default_model = SelectField( 'default_model',  choices=[(c.id, c.name) for c in AIModel.query.order_by('id')] )
     default_threshold = StringField('Face Distance threshold (below is a match):', [validators.DataRequired()])
     submit = SubmitField('Save' )
 
diff --git a/tables.sql b/tables.sql
index dec7a7b..e270955 100644
--- a/tables.sql
+++ b/tables.sql
@@ -60,7 +60,7 @@ create table FACE_FILE_LINK( FACE_ID integer, FILE_EID integer, MODEL_USED integ
     constraint FK_FFL_FILE_EID foreign key (FILE_EID) references FILE(EID),
     constraint FK_FFL_MODEL_USED foreign key (MODEL_USED) references AI_MODEL(ID) );
 
-create table FACE_REFIMG_LINK( FACE_ID integer, REFIMG_ID integer, MODEL_USED integer,
+create table FACE_REFIMG_LINK( FACE_ID integer, REFIMG_ID integer, MODEL_USED integer, FACE_DISTANCE integer,
     constraint PK_FRL_FACE_ID_REFIMG_ID primary key(FACE_ID, REFIMG_ID), 
     constraint FK_FRL_FACE_ID foreign key (FACE_ID) references FACE(ID) on delete cascade,
     constraint FK_FRL_REFIMG_ID foreign key (REFIMG_ID) references REFIMG(ID),