Laughingman,
My point was that if you're going out on potentially unsafe ice, is it still really unsafe if you're wearing gear designed for ice-cold water? I stay toasty warm in my drysuit, mittens, booties and cold water hood for hours when the water temp is 1 or 2 degrees C. There's no shock when you hit the water (which I did yesterday many times in open water that was just a few degrees C).
Now if you're going out on potentially unsafe ice wearing clothes, that would be in the category of suicide. Not a good idea.
I've ridden on thick, safe ice that had lots of deep puddles on the ice from melted snow. I used skis, and it was tons of fun. When I hit deeper puddles, it was obvious that the skis were not touching the ice anymore, but riding just on the water. A friend has done that with a snowboard, and also had a great time. He said that with a snowboard, with bigger surface area, he'd plane out on the water puddles at a much slower speed. His only problem was that his feet got cold.
Don