I have owned both, great skis. The newer stealth is good, they say the new 2004 stealth is better. ( new ft foil ) . I had a 2001 stealth , it rode good hurt my back sometimes, I found it for $500 .00 sold it for $600.00 Now I have a 2004 sky ski Pro ST with the shock tower The newer sky ski are VERY different than the older skis, I love my new 04 ss pro st. The shock tower really helps out . The new ss is alot faster than the old ss. I rode my friends older ss (2001 ) And it was alot slower and heavy feeling copared to the new ss. Try not to buy the old ac power coated foil, they are not that good . I love hydrofoiling, its so much fun. I have been foiling 2 summers now. I would get the new 2004 sky ski pro st if I was going to get a new ski. The ss rides smoother, all my jumps got higher, all my tricks got better. Good luck, both are good skis, but the ss made me alt better rider quick. All my friends tell me how good i have done on the new ski, plus the pics do not lie.