I think by the time he reaches lvl 4 he should be trimmed down and you could give him a point in str, dex, or con to say he "got fit" but if you travel to Harkon and there is no attack for weeks and you just lounge around well all that marching may go out the window lol
HM
O.O Does that mean if Aidan finds a library-type thing and starts studying, he can 'get smart'? And just to be clear, I'm just wondering as I had planned on Aidan studying once he started showing strange traits anyway.