Blacktails R Me. Been at it most of my 64 years. All OYO. I hunt the east slope of the Coast Range, Wahington County, Oregon. Actually Washington County is not a real great place for really big racked bucks, but there are pockets of good genetics. The best genetics are from Yamhill County south.
There is sooooooo much to know about blacktails and I am still learning. If you think you have them figured out you're just kidding yourself. But, experience helps. Habitat in the area where I hunt is really brushy. When its what you've grown used to all your life you just accept it, but new guys will think its impossible to see anything in that stuff. Its not impossible, just nearly impossible. I know there are a lot of deer I don't see, but that is just the way it is. Then, when you see that shooter, you get that reward that open-country hunters miss. I could be wrong, but guided hunts tend to be open-country hunts in Southern Oregon/Northern California. Brush hunting is all OYO...and a lot of success is dependent on weather and can't be guaranteed. As an example my season went like this in 2010:
I concentrate my effort the last week of the season. About 4 weeks into the season I went out in the rain (you gotta like the rain) for a shake-down hunt. Saw 5 deer (that's really good) including one forked-horn which I passed up...too small...I don't shoot the small ones any more. Nov. 1, rainy day. Saw 5 deer including one really nice young forked-horn. Like to see him in 2 or 3 years. Nov. 2, sunny, warm, hopeless. No deer. Nov. 3, 4, 5, sunny, warm, stayed home. End of season.
See my hunting story elsewhere on this site that I posted this evening.