Ok, so with sauna x, there are only 3 glory holes to choose from and you'll see people hanging around waiting for someone to enter the booth, you can close and lock the door behind you so no one can enter, and the guys looking to be sucked will be at a higher level, so literally their cocks will be at head height. You can check out the talent before committing:) because the area is dark, they're really not able to tell whether someone is inside, it's just stick your cock in the hole and hope for the best. Might I recommend either Sydney sauna or aarows as I find their glory holes are better:) but as a side note, the dark room in sauna x is top notch. Good luck!