The Tornado is an Elite Bowrider and has a ballast system and tower. Much better ride in rougher water, but it’s a bigger boat. 21’-6” and a 100” beam. I skied behind mine at 34 mph and it was fine for open water skiing. Great family boat. The Response is a superior slalom boat with better fit and finish. For overall comfort and versatility, I’d pick the Centurion. Assuming, of course, that both boats are in comparable condition.