I'm with Terry and Jim on this one. I'll take a break from my favorite Morrison and shoot one of my longbows for a couple of days. Seems like it only takes an arrow or three at most before I'm pretty close to where I want to be.
I'll go so far to say that I feel that shooting different bows on a regular basis, in addition to a lot of time with you favorite, will actually make you a better shot. My first few years of shooting trad, as my accuracy really began to improve, I was deathly afraid I would "lose" my shot or degrade my accuracy by owning and shooting other bows. It's difficult to explain but....shooting other bows has helped me discover more about knowing each nuance of my shot intimately. It also has built my confidence in my shot, knowing that no matter what bow I pick up, with very little alteration to my shot, I can be very accurate at hunting ranges...then go back to my favorite and within a few shots be 100% confident that I have lost nothing.