I started on a 550 and stood up first thing, but feel soon as i tried to turn. A day or two later i was riding and turning my 550 find. Over the summer i got pretty good at breaking it loose and sliding and jumping but it was just under powered. Bought my fx1 and jumped on it and it felt so different. So much better then my 550, more power, better quality, better ride. Took a half hour to get used to how easily the bars turned compared to my 550 but it was awesome. Since then ive rode a lightly modded square which just felt HUGE and like it had less power then my 550. And ive ridden a RN with a huge 951 seadoo motor and alot of other mods. It had crazy amounts of power but still didnt feel as good as my fx1.