At high speeds it becomes a balancing act. Prop changes is part but your ability to balance is a big part of it too. Put some time on your set up and enjoy it. Try props as they become available to you. If your determined to change things and spend money Give Brett at BBlades a call.

sounds like if it was hard to get on plane with 4 blades maybe your X is a little high with the Bmax install, you might also try some 6 blade props on your boat