I get that the fat pad is compressible. That said, I think there is a limit as to how far it can compress during the course of normal sex. Sure, if you make it a focus you can probably get most of your length to come into play; however, at lower levels of fat percentage it has to be much less work to use most of your bp length at lighter weights.

For those who may have been overweight and are at their ideal (or closer to their ideal) weight - has your partner noticed a major difference?

I have to lose a good bit of weight and it's not debatable that this should happen. That said, any little bit of extra motivation cannot hurt!