Actually, you're probably right, my draw is a little long, but considering the modules for my bow go by 1" increments,
Twist the string! You can get around a 1/2" of adjustment just by twisting hte string alone. Just dont overdo it.
On your cams, take a magic marker or whiteout pen and draw lines on each side of your axle to reset your cams to if you dont like how the new draw feels.