i have owned a sea doo 3 seater, for a couple of seasons now but this year we bought a 1996 kawasaki 900 zxi, this jet ski seems very hard to ride, I like cruising around the river , this machine is very tippy, and hard to control in rough water, I'm 6 foot and 250ilbs is this why this machine is hard to ride, will any aftermarket parts make it more stable, or do I just need to stick with the three seater