Make sure your frame is level as well as your poles. Use a level to do this. I have a Gravce frame too, and at first used my Singer 301. I was able to quilt a few quilts but it took me awhile to get decent stitches. Now I have a Janome 1600p and my quilting time is so much better. I also bought a speed control box and upgraded my carriage. Wow! What a difference that change made. If you don't want to change machines yet, go to allbrandsdotcom for a good price on an upgraded carriage. You won't regret it. Good luck. Pm me if you want more information on this setup. Happy to help.