just put the last hour of run in on my Z8, 200 pro xs and tried running fully open on plane, my problem is I could only get 5100 rpm and 58 mph gps. Im running a 10 inch hydraulic jackplate which was set at 3in below pad. the question I have with this is should there be any reason why I cannot trim the engine above vertical when I am on plane and could the trim problem be the reason for the low rpm and speed. any help would be greatly appreciated as this is my first boat.