Heel straps are the way to go Moses.

One of the guys rode with the base plates for a while and they dont have any adjustment for foot width.

With a standard MBS F3 or GI Talon binding you can adjust the binding width to fit your shoe size. Then add some heel straps to keep you foot nicely locked into your binding.

I use MBS velcro heel straps on one of my boards, and on my other board i use some ratchet straps that come off a snow board binding.

Heres a pic.