If flaps provide more lift at lower angle of attack and they are usually inboard of ailerons, do they negate the effect of washout by causing the tips to stall first resulting in loss of aileron control at lower landing speeds?
ie for the lower landing speed they provide, do you also get less roll control than landing without flaps at higher speed? Therefore more chance of problems in a crosswind?
If so then you should probably only deploy flaps on final and use rudder only for corrections. True?
Is this the reasoning behind flaperons?

Just curious!