11:22 PM, Thursday August 27th 2020
I only really know the exercises on this site, but if you practice the lesson one exercises often enough you will see improvement in overall motor control! I would say that table of ellipses and ghosted/superimposed lines will help you get a lot of mileage the fastest, but I think all the exercises are good to revisit fairly regularly. A 15 minute warm-up of these exercises a few days a week will be enough to improve. Maybe doing ghosted/superimposed lines every warm-up session and then rotating through the other exercises. Also, use the ghosting method to construct all your boxes for additional practice! I think the best advice I can give is to practice often, and experiment to see what personally helps you improve.
If you start a discussion thread maybe someone will have a really good suggestion for you. Good luck!