What are the hull weights? I have a 781 in my superjet, but am thinking of getting this hull. I am a rec rider on lakes and chase boats, wondering how big improvement this would be? What length did you get, or do they only come in one length? Do you think you could back flip on flat water? Sorry for all the questions.They are both glass and mine has a 770 motor built by Thrust Innovations and the orange ski is 701