Own a 99 280SS with twin 350 mags. Only 120 hours, runs beautifully and fast - 60 mph. Sweet spot is about 3500 rpm @ 38 mph. Below that, she gets sluggish and wants to drop off plane. Is it possible to cruise at 30 mph? Because of the twins she's stern heavy. The bow rides a little high and will porpoise without constant trim adjustment. Has anyone had luck putting weight in the bow to even the ride? Is it possible to go slow in this boat? I know - tough problem to have.