Originally Posted by Jingle

Also make sure you keep the left side of the fabric straight, I follow the 1/4" mark on my machine.
My Juki TL98QE has a compensating foot, maybe a bit more than a 1/4" but it is consistent. It has a stationary bit of the foot that rides along the machine bed. If my quilt comes up a bit smaller than pattern calls for I make it up with borders.
I have tried all the above tips and this just makes it much easier and faster for me. I have been quilting about 45 - 46 years.
Hang in there, you will find something that works for you.