A week or two before my RAD roller arrived, I was suffering pain with the knots on my Right shoulder blade. It was shooting pain and numbness, due to the new sitting position at my new desk, plus I carried heavy backpack on a trip.
The RAD works wonder, decreased and satisfied 70% after 1 night of all the soreness/uncomfortable feeling the knots created. I use it every other day (just because timing is not allowed for everyday), after 2 weeks, most of my knots are gone. I'm 95% back to normal, well, it'll take time since I work everyday. Although, I don't know if other people can take the pain as much as I can, because it hurts really bad when you use RAD on the knots, but I loveeee that pain lol. You don't feel the different right after but give it a night, you'll feel better the next morning,
The best position works for me is to sit on my bed and place the RAD vertically between my shoulder blade and the wall and keep roll back n forward or push on the knots, whatever it takes. My bed has one side against the wall so it's perfect in this case.
PS: for long hair people, make sure tight all your hair up, because the RAD is a great hair puller >[
Enjoy !