This year, the farther south you go, the drier it gets. I don't think you realize how big all the units you listed are compared the number of permits given. You can go opening day, and might not see another hunter. You could spend an entire month and not drive even a fraction of the roads or see even a small percentage of each of those unit's goats. The smart hunters will be there long before the opener and either 1) have one dead by an arrow or 2) be firing a bullet within 5 minutes of the opening morning. If you're short on time (like a week or less) and are going later in the season, find out where the antelope stack up at as many of those units have migratory herds. Call the game and fish bio for the unit. If you wait until later in the season and plan it right, chances are you'll see just a mindboggling amount of antelope.