It is also important that your frame is level and that the rails the carriage rides on are as smooth as glass. If your frame is on carpeting, you might have to put something under the feet to help keep it level. Hubby & I went round & round about my first frame when I told him that it wouldn't stay level on the carpeting. I had to prove him wrong but he finally believed me after watching how much it would wiggle after a day's quilting with the robotic quilter & after he leveled it the 3rd time. He kept accusing me of bumping it!
Some wheels seem to glide better than others and gunk can build up on your wheels. I wipe my rails and wheels down with silicone spray about once per month when I'm really in a quilting frenzy.