you may try the moomba site, regular foot set up is harder to get right then the goofy side. on mine i also replaced the platform to get it out of the water when it is in surf mode. I just picked up the 1180 bag for the front, so i will try this set up next for goofy side.
400 left rear
750 right rear
400 under seat behind driver
plate all the way up, ( needle on gauge to left )
12 to 13 mph
I have surfed with just a 750 bag in the right rear corner and it seemed to work at 11 mph