Thanks for all the suggestions! I have found that FMQ'ing on my 201 (in a period Art Deco cabinet) with knee control works beautifully. Right now I'm doing 22" practice squares, but when I get to a "real quilt" I'll probably need to set up a folding table behind the machine cabinet to reduce drag. That's a bummer because the Horn Quilter's Dream cabinet I bought last year has a hinged drop leaf in back that runs the length of the cabinet for that purpose. It also has a left front extension to put on when working on a large quilt. :-( I suppose when/if I get a new machine for that cabinet that has a start/stop button, I'll be able to use it again.
Turning my pedal doesn't work for me. It leaves me no way to rest my foot between stitching seams. I did turn my pedal for 30 years on my 1980's Necchi. I could then rest my heel on the back (actually front ;-) of the pedal and press down with the front of my to stitch. I think they have ruined pedal design on these new machines. It makes sewing harder without the start/stop feature many now have.
Taking frequent breaks to stretch and rotate my ankle really helps too. I'm going to try and find some ankle exercises to strengthen the muscles and tendons in that area. If anyone knows of any, please post.