Hi Arien, very valid questions. The fit which included in Quarker's set is an additional conforming model for SP3. The fit included in In Love Again is a Fit using the Universal Prop Figure Hair. One mayb want to use either - depending on preference. Fits for the Girl and M3? They are in my second set for Sapphire Fox Hair which will be out soon. That set also has hair fits for other characters not included in this set.