Sounds like a great time. Like Hunt It, when your first post said July I thought that's late for the rut and the hide will be sparse and patchy. The rut here is going well the first week in June.
I've done quite a bit of spot and stalk for them and it is a blast. Listen to your guide of course.
As a general rule, if you're in an area with lots of bears, be choosy and pick which ones are better animals and in more stalkable spots, as you can burn a lot of time and energy on just one stalk.
I generally close the bulk of the distance real fast and then slow down when I get within 50-100 yards, depending on the terrain.
To state the obvious, if you can be in a position where the bear closes the final distance is best, i.e. get in front of them. Also, sometimes you can wait until they go behind a ridge, boulder, etc then hustle the last bit to them.
Another general statement is to not hesitate. The wind can change so quick and then they're gone.
If one does bust you, or you stalk to one and then can't find it, stick around. More often than not they will re-emerge within a few minutes to an hour or so if they spooked, or they may be unaware of you but are temporarily out of sight.
Ask your guide what position you will likely be shooting from and practice accordingly. I generally end up shooting from my knees, so I practice a lot like that. I walk around the yard, and drop down without looking at the target, then raise up on my knees and shoot. Quite often from your knees you get more of a 2-dimensional view of the animal, i.e. you see little or none of the ground between, so it's harder for your hair covered computer to gauge things. So I practice that.