I am looking to convert my tiller shift model to a side shift (not remote control). I see the conversion kit (http://www.boats.net/parts/detail/merc/M-821190A 2.html) but was wondering if I need to do anything inside the tiller handle also? Or can the gates for Neutral and Reverse stay the same and unused, and just use the forward function on the tiller as throttle for all 3 positions of the side shift? Hopefully this makes sense. Thanks for the help.