mastercraft's setup is actually used on many offshore powerboats to keep the boat from "walking" at high speeds. look at the rear of most donzi/fountains and you will see dual tabs. they were around before mastercraft started "surftabs". wonder if they will sue them?

heck, sanger had a movable tab system back in the late 60's on their vdrive gofasts. perhaps they should be suing everybody. they could use the money since they aren't moving many boats.