RE: run on ice snow
if your gonna run on ICE , then I would suggest ONLY adding a layer of resin , OR glass and resin to the bottom section(s) that will make contact with the ice . ( no need for added weight ) And no ... this little added weight ( resin ) will not affect your hulls ability to float .
You would be surprized at how LONG lasting that little thin layer of resin will do when running on ice . ( I have a buddy , who has had his initial layer now , for a couple of years , and this guy is nutso when running - LOL )