Outside of the National Grasslands units like 87 and 88 that take about 8 or 9 poins as a resident to draw, there aren't many other options. The Big Game Walk In Access Areas are supposed to address this, but they are totally overrun and don't have that many antelope on them.
I think it's pretty much bad for all methods of take. I have some pirvate land I can hunt, and while he lets alot of people hunt it, he also does let walk ons hunt. He has alot of land and he also has a lot of antelope on them but with the few of us that hunt it we have more than enough room to not pressure each other too much.
I have hunted the WIA on many occasions, and on many ranches.
Rifle season? ---CRAZY! Stay away is my best suggestion. ...and the animals have long since booked it to private somewhere.
I hunted several ranches during two seasons in archery, one year for 18 days, and one year for 3...I saw a total of  other hunter on any of the ranches durign those 21 days...and I would estimate the one time I went rifle, I likely saw 21 hunters on each ranch on the  I hunted them! I gave up and looked for some private to hunt the next two days, with no luck, I got the feeling that the farmer/ranchers were already fed up with requests and the hunters making a mess of things.
When I went archery hunting the first time...I had ranchers driving me around and pointing the animals out to me, or giving directions, letting me use different gates, etc....WAY cool about it.
When it comes to scent, there are basically two types; those that attract and those that mask. I've tried both on many occasions. There are lots and lots of "doe in heat" scents, designed to attract a big buck into range. I've also used a "cow in heat" scent while elk hunting.
Another scent would almost be better named as a "coverup smell". The main goal is to cover up human odor or mask it. Though I don't believe you can ever totally eliminate all human...