I understand what you are saying, but how is your buddy shooting with his setup? Remember, the bow was set up for him and not for you. I have never shot a friends bow that fit me the same way that it fit them. From what I have experienced, If I see something with someones setup that I don't like, and they are shooting well, I keep my comments to myself. I have seen some jacked up setups at the range and commented to the shooter about it and about had my head bitten off for trying to help them. They were struggling but didn't want my advice because the shop set it up for them. I have seen two friends blow up their bows because they were shooting the wrong arrows. I tried to tell them but they wouldn't listen.
Letting us know what was wrong with your buddys setup would be helpful.