I would tend stay away from purposeful close encounters. That said, if I had any camp within 3 miles of mine, we are going to hunt some of the same areas as I tend to roam a fair bit. I've run into outfitter guys a few times. They always seem surprised that someone would walk 3-5 miles.
The other thing I would do with that new found bit of knowledge is use the other guys to push elk to me. I'd set up a bit in natural terrain funnels to catch elk movement away from the other camp - especially if it was full of people. A bunch of movement/hunting around a camp with a campful of guys will move elk away from the camp. I'd also look at nasty/thick/steep areas in proximity to the other camp - might find elk hiding in those places.
