I don't like SID just for this reason,it seldom stays in the ditch and therefore it looks bad.
I'd rather do grid quilting or FMQ, its far less frustrating for me. Its very important that your quilt is supported all around. I have my machine in a cabinet and so the machine sits flush with the table. Before I got a cabinet I had the dining room table to quilt on and made sure that I had a card table or the like to the left of the machine to catch the quilt so that it didn't drag on the needle.
I use a 90/14 top stitch needle,stitch length set at 3.0-3.5mm and King Tut or other good quality thread.
The most important thing is to relax and just have fun!!! We can't always be perfect.