I thought I would post this to have some folks chime in and let people know what setup they are using to create a nice wave to surf on. On my '08 Sunsport 22V, I have found the 750's in the rear corners have made a huge difference for enjoyable surfing without using the rope.
Drivers side - Fill 750 lb rear, wake plate all the way up, do not fill front sac, speed at about 10.2-10.6 MPH. As many people possible on that side of the boat.
Passenger side - Fill 750 lb rear, wake plate at 1/2 down, do not fill front sac, Speed at about 10.6-11.0 MPH.
For some reason I am getting no benefit from filling the center ballast sac, other than sucking more fuel down, and less driver control because of the added weight. With the 750's my rear swim platform is about 4" under water when the boat is sitting, which is helping drive that rear corner deep into the water to produce a nice wave. I will try and get some pics this week and post them up.
With this setup we are now easily throwing the rope in and free surfining even with a larger, slower broadcast 5.6 board. I am getting ready to purchase a smaller, 4.5-4.8 faster board which should even get better.
I am attaching a photo from a '07 Moomba LSV using my setup plus an additional 200 lbs under the bench, which is making a nice wave. The Moomba is a little narrower than my Sunsport (98" beam compared to 100" beam), but I believe they are very similiar hull designs.
If you have a certain setup you are using, please post it up here for people to try out.
Fman