the difference with the wavemakers system is the tabs themselves. you're not going to get a great wave just by adding trim tabs. if i were you i'd modify the trim tabs after looking at the various designs out there so that they do some water diversion. supra, moomba, mastercraft gen2, wavecontrol--they all have strategically placed fins and channels to divert the water away from the surfer and that's why they work better than slapping a trim tab on would.