"Luckily" for me, I'm diving in my drysuit in pretty consistent temperature water (between 50 and 60 degrees F). So I have to ask, when you say "other than getting them on" do you have to do any "forcing" yourself into the catheter tip or do you still simply cap your unit and roll the cath down?We are all a bit different... I had far too many come off after a few hours in 30 something degree f water (widebands too). Other than getting them on, no issues since going down a size. ;-)