rocker plates are not tabs they bend to add hook to pull the nose down if needed or rocker to let the nose rise all while adding to the running surface of the boat don't think the added strakes would like to be bent
a simple way to look at rocker plates is think of a sheet of alum locked in a vise with 12 inches sticking out of the vise pushing up on the end would be rocker pushing down would be hook
here are rocker plates and an arneson