If quilting a few quilts with imperfect stitches just isn't your thing, a
Sure Stitch Regulator will likely suit you better.
A Sure Stitch Regulator will regulate your stitches to make them the same length no matter how fast or slow you're moving your machine's carriage. This means you can select your setting (I like #9 to make nice tiny stitches) and hit START and all your stitches will be the same length. No practice necessary!
It is more work to attach this regulator to your frame and a lot more pieces and cables, but it's worth it to have stitches that look great no matter how fast you stitch!
Let's watch how to attach the regulator to your frame, which can be a little tricky: