Take a thermacell. I have only used mine a couple times at Ryan's, but it is nice to have. Watch a lot of bear videos and try to get a feel for how they act around a bait site. Tell Ryan what you want and be realistic. An 8 foot blond is not realistic.
Unless you have hunted bears a lot, you will be surprised how quietly they come in. Also I am convinced they know you are there but see you as a subordinate bear because you are in a tree. Be patient. They will normally give you a shot unless it is a big boar that is just cruising in the spring. He may necessitate a close walking shot.
Above all, enjoy the experience! I have had great nights at Ryan's without letting an arrow go. The bear behavior is is fascinating and if you draw Determination, take extra underwear!
D. P.