hey mods. love the set up in your jet boat . mine is pretty modest . i use the stock jet unit with a small 28mm x 47mm 4200 kv motor. i dropped in a 30 amp esc and standard futaba servo. i water cooled esc and motor . had to make a coupler for it , as i couldn't find one on e bay. she is now smooth and vibe free. it goes pretty good on this set up. not supper fast but still way better than it was out of the box. lol!