I have a Fusion with over 100 dives on it. I always rinse the inside of my drysuit with fresh water after diving and sometimes wash in a tub with wetsuit/drysuit shampoo. I didn't do much diving last year and I found that it was harder to slide into and I can no longer reach my fins in the suit. I chalked it up to gaining a few pounds (8-10) and thought maybe my tight BC was the problem. After a process of elimination, I realized last week that it's not my BC because I now have a BP/W and it's not that my suit is too tight because I can still fit my hands into the legs with plenty of expansion room. I think it's because the inside of the suit is actually grabbing my undergarment when I try to bend my knees because it's no longer smooth inside. What is the best way to clean the inside to restore the smooth surface? Is the wetsuit/drysuit shampoo not good to use on the inside?