I do glass when creeping around, but I meant that I only rarely try to find a significant vantage point to glass elk, then decide how to close the distance. Most of the places I've hunted you'd have to go way out of your way to get a decent view.
I never really glass the thick stuff because the bino's I use are 12 power most of the time, and it seems that I would not get the visual of something moving on the sides that I am not glassing. Maybe I should reconsider and give it a try.
If you're lucky enough to be on private land and can leave your stand up during the off season you can tie an old piece of cloth or something of the sort to your stand. I like to use an old camo bandana that I have. That way the deer get used to the movement and eventually don't bother even looking up when there is slight movement. This may just give you the time to draw your bow or raise your gun without being detected.