A note on winter flying...
Last winter I was flying with the same 3 guys in the video above at the same lake on a very cold day. There was a thin skin of ice that started about 100 feet off shore and covered the entire center of the lake.
I eventually got nerve enough to land on the ice and the Cap went very well as you'd expect. However, the ice was thin and when I tried to go from the water onto the ice, the model stopped like it hit a brick wall!
The edge of the ice sheet actually cut into the edge of one sponson pretty deep! One of the other guys landed on the ice pretty hard and broke thru the crust and got stuck for a while, but moving the controlls freed it up enough to take off again.
The moral is that thin ice is tricky!