Yea, Tabs were my last upgrade. I did a lot on my 2007 Supra: Upgraded Ballast > Updated Pumps > Wet Sounds Stereo System > Upgraded Interior Lights > Transom Lights > Surf Swim Platform > FAE > Tabs.
Ballast will determine the wave size.
Suck gates can run at different weights. Cleaning up the wave is simple as moving a few people/bags around. I usually carried lead bags to move around the cockpit to make adjustments.
Tabs have to have a lot of weight. I still carried the bags for the add'l weight and for clean up. I still do that on my SL.
There is a good thread on the Moomba page about a guy that built his own tabs. Basically copied the Evolution Tabs. Cool to read b/c he tried a few versions and had some pics for the waves and the weight he ran. Plus he talked about what worked and did not work during his building process.