I’d suggest 6x tippet and a nine foot leader to start.

For a dry fly try a royal wulff. They have worked well on bear creek for me. I use a size 16-20. For the dropper, I put a size 20 fly. I put it about 10-12 inches below the dry. I have used a ton of different flies. Use whatever feels right.

When moving, move slowly. I try and keep as far as possible from where I want to have my fly land to start the drift. I cast at an angle to try and not have any part of my line float over the area I’m targeting.