Thats a very interesting web site.
Im still practicing free motion after 3 yrs. It is so hard.
I did find that by grid quilting the middle of my quilts then using free motion for the borders, that it is a great way to learn. This way you are not fighting the quilt since the borders do not have to be shoved thru the machine. All the quilt is to the left of the machine.
Simple continuous line hearts or leaves is a great way to practice.