I upgraded to Mike's jib sheet system with the trentec car and lance cleat. I have had little problems with the system. Personally, it took a few trips to get used to the lance cleats, but once you get used to cleating to the side versus downward for the cam cleat, his system works like a charm.
Thanks for the diagram Mike! <img src="http://www.catsailor.com/forums/images/graemlins/cool.gif" alt="" />