Most of the venues I fish, the carp are seriously cute,
I might start at 13m just on the basis that if I can mug a few close it’s easier, but i’m more likely to catch at 14.5-16m.
They seem to feel safer the further away from you they are.
The “horrendous wind” you mentioned, probably masked all the bankside disturbance from a load of hairy arsed blokes and made them more confident closer in.
With silvers it’s a different matter. You seem to be able to catch them much closer in, probably due to the lack of lumps and the amount of competition.