Hi! And welcome! No adjustments specific to treadling or hand cranking need to be done to make a stitch. The most common reasons for skipped stitches with treadling would be 1. the needle in wrong, usually backwards, but off the top of my head, I'm not sure if either of your machines uses a round shank needle, so it could be more than just backwards if so and 2. Turning the handwheel the wrong way. Again, not knowing your specific machines - most machines turn the handwheel toward you and most handcranks are cranked away from you to turn the handwheel forwards but there are a few manufacturers who had machines that turned the wheel backward to stitch.