I have to agree with some others here that is isn' t the cold[:' (] I Shoot 63# and have been so cold in late december/early january that I couldn' t feel my fingers anymore and was still able to draw easily. It MAY have been a little tougher than usual but never the less I was easily able to draw. Once the adrenaline hits you should be able to pull without any problem. I have no suggestions as to what the problem may be but try cranking it wayyyy down and see what happens. My guess is that it isn' t the cold. Draw every 30 minutes or so and try flexing while you' re sitting there to keep the muscles warmed a little.