The biggest thing I found from hunting Unit 30 was to get off the roads. There are scores, and I mean scores, of road hunters in that unit. I've seen people riding around with lawn chairs in the back of their truck expecting to shoot something (and they call themselves "hunters" I suppose as well). Get off the road, get up as high as you can, and you'll find deer eventually. I also preferred the areas that weren't in the National Forest as that area just got pounded with other hunters. I shot a small six-point in 2012 about an hour into opening morning (I wasn't being very picky as it was my first try in the unit), but I've hunted javelina (unsuccessfully) in there twice before and saw quite a few decent bucks. I've glassed up 6-8 decent bucks in a solid morning of glassing before, so they are there; they're just used to lots of traffic on the roads, so you need to do a little walking and a lot of glassing, in my opinion, in order to be successful. The deer like to bed on the tops of the mesas, feed down the sides in the morning, and then move back up to bed late morning. I checked several areas when I was hunting in there, and everywhere I got up high and glassed from, I was able to spot bucks after putting some time in. Optics are your most important tool for mule deer in my opinion, especially if you are trying to find big deer. Don't know if this helps you or not, but it works for me, and this is what I'd do if it were my tag.
Good luck. Post a picture if you get one.