The grips feel different, natural to hold, easy to guide because I am in complete control. I don't need to take my hands off the grips to alter the speed. I can reach the speed control and on off buttons with my thumbs.
Anyway, I'm thrilled that the prototype was finished in time for the DVD filming today. We should have grips ready for JUKI and Janome sewing machines in time for the Festival of Quilts this August. Nifty Grips for other sewing machines will follow soon.