I have an LSV and have switched out the bags for the 750# fly high bags. I get a great wake on either side by filling either one of those depending which side you want to ride, filling the center (approx 300#), and if i don't have at least 4 people on the boat i add a 350# tube sac on the floor of what ever side you are surfing on.
Picture is with 750 full, ski locker sac full, and about 6-7 people in boat. The stock sacs in the back are 400#, replacing those is the easiest way to get a good wake. Good luck!