So I got my new machine, a Brother SQ9050...and I have been trying to quilt my quilt on it using the walking foot that came with it...however the stitches are all different sizes...some are really really tiny and then some are the size that I want them to be..they vary...which is really annoying cause it is pretty noticeable on some of the fabrics in the quilt...Has anyone else had this problem and do ya'll have any suggestions?