DoeLover, Sorry I can't help much on GMU 42 or 33, I spend all my time in GMU 43. According to the CDOW, 33 has alot of ATV us. It sounds like 42 is more remote. I know in unit 43, during the muzzleloader season, the bulls are up high. We have been there the week before the muzzleloader and hunted with a bow and have found them to be between the 9,500'-11,000' level. As long as you get away from the roads and go high, you should have a great hunt.