Bulkhead mounted 70P is designed for demanding boat owners, with a precise and steady compass rose under all conditions. Handles unlimited slope of the keel line and 30º heeling angle. Very popular for smaller sailboats and kayaks.
Many kayak manufacturers have chosen to design a compass reinforcement on the deck for 70P. Wilderness Systems, Dagger, P & H , Valley, SKUK ( Nigel Dennis ), TideRace and so on.