One of my machine quilting books had a page of stippling. It was suggested that you trace the stippling to get used to the movement. I photocopied the page and put it in a plastic sheet protector and used a dri-erase marker to trace the stippling design. Then I erased it and continued retracing and practicing. It helps to 'train' your brain to move in the right motion.
Now I have an IPad with a 'Drawing Pad' app so I can draw stippling designs with the tip of my finger while I am relaxing in front of the TV. Then I delete it and just keep practicing. It helps you to think in 'stipple-ese'. Is that a word? lol
It just takes a lot of practice. I'm still not comfortable enough to quilt a large quilt, but I do some Project Linus quilts and other charity quilts. I'll keep trying and some day, when I grow up, I'll be a FMQer. lol
Norma