Just sharing, I finally took a pic of my wake (not me riding) last Saturday. This is a '98 SuperSport with about 500 in each rear locker, about 500 in the ski locker, maybe 150 in the bow, 2 people in the boat, 22.5mph gps, and 70' back. Later in the session I emptied the bow sac and it got just a little taller and steeper. I need bigger sacs for the rear. It was a nice glassy day.
I have each rear sac fed off it's own Simer pump, both T'd off the raw water intake. They work great. After the initial fill I get up to speed and see which side has whitewash and then just hit that side's switch to fill that sac a little more. For the locker sac, I just put in 1.25" scoop thru-hull in the rear-starboard corner of the ski locker. This goes to a 3rd Simer pump which feeds the locker sac and T's to a small bow sac. I don't think I'll use the bow sac anymore unless I have more people in the rear of the boat or I get bigger rear sacs.