I deal with and sell both Limb Saver and BowJax products. I used to use the Sims products, but the last couple of years I've been using the BowJax primarily because I felt IMHO they were more effecient.
This video is posted on AT but I know many never get over there. I thought it interesting.
http://www.youtube.com/watch?v=zQZvE...eature=channel
Dan