Yeah, I have been using a ~14 year old 6/5/4 and I usually end up hurting my shoulder due to the restrictiveness of the suit. At least I was never cold, even in conditions like Day 1. Actually a little too warm. Debated buying 5/4/3 but don't use it enough so bought a vest with hood, hopefully that will do the trick. Before I had the 6/5 I was in a 4/3 all year and it sucked, but I've got thicker boots and gloves now.