Hands are really complicated. I am sorry to hear about your accident. My general recommendations are the same as for any injury - give it as much work as you can without making it worse. I don't have any experience with this particular injury, so your guess is about as good as mine. I like your approach. Start with something light and move up as pain allows. Also, you may want to see what pressing a light bar feels like. You will be able to judge when you are ready for what, most likely. We'll see if any of our more knowledgeable readers have input.