I have a Shooting Chrony Beta Master. I am fed up with it spitting "Err" messages if someone else fires a shot four stalls away from me. It's really useless unless I am at my local shooting range alone. Is there a chrony that is not so sensitive to a muzzle blast that is around 20 ft. to the side? I can read ads, what I'm looking for is first-hand experience. Or am I looking for something that doesn't exist? Thanks for your input.