I wouldn't mind seeing a separate PL forum! Rationalist, how tall are you? The ability to touch with a shirt has a lot to do with how long your arms are, or more simply put, how far does the bar have to travel? You will only get X amount of stretch from a poly, so if the bar has to travel more than 10-12 inches the stretch can't start at the top or you won't touch. Guys who have a short bench stroke, or tremendous lockout power generally get the most out of a shirt. If you have a long stroke you'll need to do a lot of board pressing to have the power to lock out 4 bills. I have a training partner who's bench goes from 450 to 555 with a Fury. Thats drug free at 181 by the way!
He pushes about ten inches so his shirt starts stretching as soon as he unlocks his elbows. I have another friend who pushes about twenty inches, he only gets about 25 pounds from the shirt. These newer shirts take a lot of practice to perfect, best of luck to you and let us know how it goes!