I have bought tons of suits throughout the years and normally just bought entry stuff because I was a strong guy who went balls out and didnt care...until Excel started earning my loyalty. NOW, I have only bought Excel and the panels and superstretch make a HUGE difference for me after monster shoulder damage from 20 military years, pro football, surfing, snowboarding and the usual X life. My next suit will be a drylock or xzip because my shoulders just cant do the zip much longer, BUT, I wouldnt buy a different rear zip suit due to placement and ease. Being retired, I couldnt afford the higher priced versions of the infinity or the drylock, but, I wont have a choice and will happily pay Dogfunk for what they offer in their stock because they FLAT OUT ROCK! Thanks Excel, Dogfunk and Dakine, you have kept me going in even COLD ASS MICHIGAN and when I travel to my favorite spots in Ventura, Cocoa Beach and Baja Malibu!!! Only reason not 5 stars is just the transition before you get over deltoids is a bit tight but it has to be and I only have a small entry issue at 6'4" 228 on the XXL. Just a big guy from shoulder to shoulder.