And just a note that if you DO shorten you draw up by an inch or more- GIVE IT A CHANCE! It will feel completely awkward, strange, and 'not right' at first because your muscles are so used to the current situation.

Some recommend to shorten draw in little increments to allow a gradual acceptance, others will just make the jump and readjust. Either way you'll need to allow for an adjustment period where you probably won't shoot as well right off the bat. But in the long run you will benefit from it.