I would still like to know exactly how its different. I have been inside both skis and it looks and feels the same? I don't think its just superjets that a issue with water intrusion into the foam, I think its just that they are more likely used as a freeride ski. I do have a friend thats just runs bouy's and his is water logged though. My hull was right at 100lbs with pump and driveshaft minus hood and everything else. The hood weighs a ton, like 25lbs and thats the next thing to go on a diet! I am not sure yet if I am leaving my nose foam out or not, it looks cleaner with out it. It weighs near nothing. And for my pole I run a bad attitude stainless that is lighter than stock, not sure exactly how much, but it stands up with a stock woreout spring. I will weigh it all here in a week or so when I am done. Not going to be the lightest ski but way better than stock. Leaving the foam out is a experiment for me to see how the hull reacts to it. It may break in two or sink, but maybe it will be great! Who knows. I like the idea of haveing the extra flotation in the rear should I take on a lot of water and dry foam weighs near nothing a couple of pounds maybe. I just think its easier to try it without and add it later should I need to than have a issue with water saturation a year down the road.