Thanks SkipperJer,

The track is a 1" Schaefer 'racing' track (the 'racing' model has more notches for sheet car adjustment) that the standard one. It has worked beautifully so far. I use the twin sheet cars on the track.

I suspect that your sailmaker is about right on the location... I have a 90-100% jib and then a BIG genoa. I do not have any sails in the 125% range. I would appreciate some pictures to see where your sheet cars ends-up with a properly trimmed 125%.

Feel free to shoot me an e-mail if you need further details...