I consentrate on keeping my fingers on my bow hand limp, so as I dont end up wrapping my fingers around the grip. I was taught that the bow is held in place of the bow hand only by the force of pulling on the string, wedged between your forefinger and thumb, thus keeping torque to a minimum, however the wrist area is still flexible and you must be consistent with it. If it's a problem, try using some sport tape to help stiffen the wrist. good luck