Keeping it challenging...
Whatever is practiced, it must be challenging. In research, an 80-percent threshold is generally used. For instance, if a stroke survivor can successfully turn the pages in a magazine 80 percent of the time, the challenge can be increased by turning the pages of a newspaper. Since turning pages of newspaper requires increased excursion of the shoulder and elbow, the increased AROM will "trickle down" to easier tasks such as turning pages in books and magazines, card flipping and laundry folding.
What is usually done
Compensation (learning to "get by" with the "good" side). As "Dean's" puts it: Compensation being doing whatever is necessary to accomplish a goal. Recovery is using the muscles as intended to accomplish the same goal. Insurance wants you to use compensation whenever possible because it is faster and cheaper.
Faster and cheaper
Faster and cheaper is good because its faster and cheaper. You could go to a State University. Or you could get a degree from a degree mill. You could make a a salad, but you could get the same amount of calories from a pop tart. But even as fast and cheap as they are, you'll still feel gypped.