I'm to the age now that I may have to give up on a couple of them and go find a ranch that offers hunts on them. I am also toying with the idea of heading back north into Canada for the moose and goat hunts. Also a friend is working on a ranch in New Mexico on the Mexico border that does bison hunts for just a few more dollars than what I would pay in Utah so I may go that way for a bison and pay by the size of the animal. I don't put in for elk since I drew a Book Cliff tag back in 2001 and shot a nice 6x6 with a eye guard that went 343 points. I have also been on a dozen successful bison hunts in the Henry Mountains with others but with the point creep I doubt that I'll ever see that tag as a non-resident. The point creep for moose is about the same as with the bison. Then the goat and sheep tags are just pipe dreams that I have.
But you never know I could always get lucky a few years in a row.
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...