I just purchased a Lewmar folding wheel and need to switch over my X-5 autopilot wheel. Two things;I need the 16mm rubber inserts, does anyone know if I can get them from Raymarine or do I need to go to a dealer? Second the wheel has a slight dish to it. Will the new rubber allow enough movement so there is now warping force applied to to the drive wheel. I have seen this unit installed on these wheels but never up close.