Originally Posted by PatriceJ

i learned on machines like that. after all these decades, when i have the knee lift hooked up, i automatically try to use it as the power control. it's sooooo much fun [not] when the foot goes up while i'm still sewing.

most of them are not positioned properly for me, either.
the lever is too far away from my leg.
i either have to scooch over so my view is distorted or i have to swing my knee waaaay out like i was on some crazy exercise equipment.

happy for those who have and love them.
mine are all tucked away where they can do no harm. lol