My right hand works good, my left hand is typical quad, but I do believe it can be better. A friend told my to use popcicle sticks to sttretch them but that doesn't seem the easiest thing to me. I found this site http://www.3pointproducts.com/sidemenu/fingers/ but knowing if any of these and which is beneficial is beyond me. I want something that can stretch my fingrs to the max. Appreciate info on what has worked for you. Thank you. Ian