With the new YZ timing, I have a slight miss while cruising off throttle, then putting the throttle on slightly. If I roll on the throttle stronger, it does not miss. Will the BK mod fix this? I have the impression that moving the needle to 3 postion reduces this problem, but, I like 4th position because the torque comes on so much faster. The bike gives much better wheelies in 4th position. Do I need the BK mode??