Try to eliminate drag on the needle by having a big flat table to support you quilt whilst you are quilting and use nothing lighter than a 90/14 needle to quilt with.If you can get a sole plate that is designed for straight stitching (with a single hole in it) it can be a help as well. You will get a better stitch as the embroidery plates have a bit more 'give' than the single stitch plates.As others have mentioned here, it is good to have a practice sandwich that you can use for about 10 minutes before you start on your quilt each time. It will loosen you up and get you into the rhythm.Also, if you are doing a lot of quilting you should change the needle often. It is already too blunt when you can hear it popping when it goes into the material.Good luck with your project