I have a 1992 250 v8 on a 23ft Robalo CC. The engine has decent water pressure, around 15lbs at cruising speeds. At the upper end of the throttle range the water pressuer starts to bounce. I am wondering if my engine is a bit too high? Also, on acceleration or cruising in choppy water, the engine performs best basically in the fully down position. I have the anti cavitation plate set so its just slightly below the keel, approx 1/4". I also noticed, this should be fun to describe, but when underway, at the transom the water does not look to be moving past the hull but seems to back up to the transom like a following sea. My other past boats seem to leave a depression in the water at the transom from the v of the hull basically so you can kinda see the top of the anti cav plate. Is this because of the hull or poor setup on my part. Not sure if this makes any sense? I kinda have assumed that this boat is kinda heavy to easily trim with a single OB and no trim tabs.