Fast/Yeah- I'm guessing the issue isn't in the functionality of the current system but more likely that he can't REACH the current system from the helm. I have the same issue with mine in that I can't get to the mainsheet without climbing around the wheel. You can fix it by running the sheet further outboard (than Fasters diagram) and bringing the sheet back to a secondary winch further aft in the cockpit.
Maxum 3200 Miss Adventure
Formerly - Tartan 34C Yawl