The only problem I have when I use the treadles is sewing short pieces. The starting and stopping can be a chore sometimes. But you get the hang of it. I've finally gotten the point that I can usually start and stop both of my 66 treadles without having to turn the hand wheel. I just give it a glance to make sure it's going the right direction then get with it. When I sew long lengths like when I was quilting my machine covers I just get to going and sew just like an electric.
If you want to email me the link feel free to do so.
Joe