I went to the dealer and measured the Autoflow tab angle on a Craz Pro (effing awesome boat, BTW). The tabs are at 30° at 100% deployment. Seems many run them around 60%, which was 20°.

At any rate, it gave me something to work with for setting my tab angles. I had originally made lower brackets that had a single hole for the actuator. But I decided I wanted to have some adjustability. I made a couple different versions today, but ended up with a design I like. They have 4 actuator holes (of which only 3 are really usable) which will provide 18, 24, and 30 degrees of deployment. I also made it so I can move the mount itself a half inch to change the angles more.

I also made diversion fins for the bottom of the tabs, 2 on each. I'll see how these work, and may play with the angles a bit with those as well. They are currently set at 60° from the transom.

I need to pick up some more screws to finish mounting the port tab, but otherwise they're ready to test.