I got a new to me 2010 Moomba Mobius LSV and can’t go ropeless surfing. I have 750lbs in the rear, ski locker and IBS ballast. Also have wakeshaper. Wondering what set up for speed and ballast? Considering upgrading to 1100s in rear but they are 50 x 24 x 24 and my 750s are 50 x 20 x 20 and are busting out of the compartment when full. Please help!