Having struggled with stitch length when FMQ on my domestic sewing machine I found a stitch regulator an absolute must have for my LA. I feel it reduces the learning curve considerably to have one and your stitches look great right away. I have an Innova 26" LA. I only have a 10' rack so am limited to nothing bigger then queen size. Space in my home was the limiter for rack size. If you have the space go with a bigger rack.