Maybe this will help:
If we have 2 transformed FamilyInstances, we can reset transforms of their solids (move to 0,0,0 and rest rotation) and compare vertices count positions, maybe?
Maybe this will help:
If we have 2 transformed FamilyInstances, we can reset transforms of their solids (move to 0,0,0 and rest rotation) and compare vertices count positions, maybe?