I'm considering buying a Tilos 6.5 mm 2 pc Titanium wetsuit. Has anyone purchased this or any Tilos wetsuit? What is your opinion on durability, warmth, etc? I do most of my diving in quarries with temps in the mid 50's - 60's, so warmth is definitely a big factor. I've found 5/3 mm 1 pc is too chilly for me. Thanks!