I bought a typhoon drysuit recently. Not custom sized, but a pretty good fit--or so I thought. My problem is that after diving (and hence squeeze) I don't have enough flexibility in the legs to get my fins off when boat diving (not as much of an issue with shore dives but still a problem). Prior to diving there is no problem--can bend and twist all day. I have tried adding lots of air, but it just goes north. I have tried thin and thick undergarments with no difference. Anyone else with this problem? Any suggestions?