Jack Hammer
Contributor
Well that hasn't been my experience on land or underwater. As I stated I'm able to use 3mm wet gloves when I dive dry and be very comfortable. Diving wet suit, 7mm mitts didn't do the job as well. So how would you explain that? I agree you can't dive bare handed and be comfortable in cold water regardless of wet or dry suit, however most people can't dive a 3mm wet suit with dry gloves and keep your hands warm in 35DF water (example only). I'm glad what you do works for you. I know by experience that it does not work for me.
Many people have different tolerances for cold. One of my regular dive partners uses a wetsuit in 39* water where I use a drysuit and a lot of undergarment. He is perfectly comfortable at the end of our second hour long dive in that. I wasn't nearly as comfortable as he was in a heavier wetsuit in warmer waters. I imagine you'd agree that the 3mm gloves you are comfortable with in extremely cold water would not offer the same thermal HAND protection if they allowed a constant flow of icy water into the glove.
I think, perhaps you are misreading what I've been saying. I would never suggest or imply that with warm gloves one should not use proper insulation at the core. What I have been saying is that before the core reaches a point of reducing flow to the extemities to protect itself, while it is still warm, it continues to send heat out to the head, legs, arms, feet, hands, etc to help keep them warm. If the extremities are not properly insulated they will draw more heat than most people would imagine from the core to attempt to keep them warm, if they draw too much the body reduces flow to them to protect the core. Properly insulating the extemities and core will keep one warmer longer than will only properly insulating one portion of the body.
I was unable to find the links, there were some recent studies, also talked about on many boards, that found this to be the case.