II got my fitting done with Nate Loyal about 4-5 years ago, I have mixed feelings about the fit. I was still having some issues post fit, which might be because I already injured a certain area and needed time to recover(no fit would solve that).
I got my latest 2 fits done with Jim Baldesaur(JB) in Ohio. Hands down the best fit ever. I attribute at least a 5% increase in overall power due to being way more comfortable and extending the legs out. It could be placebo but I seriously felt like he knew what he was doing. It was stupid hard to get a hold of him though...