Bro, no I was not saying that exercise selection affects b/f%. What I was implying was most likely the peolpe who do rope pulls are mostly big powerlifters vs. bodybuilders and if that's true, powerlifters do have more b/f% to assist in the 1RM lift. I also never said they (rope pulls) were not a good exercise to do... but we still agree to disagree about which is better to specifically target the bicep muscle. Peace out..