Thanks for the responses. I ended up renting boots, which really was a bad idea. I tried on multiple boots, going as small possible on the shell, but the room between my toe box and shin loosened up while skiing. I think if you are used to custom fit boots going to a generic boot will not be a good experience. I ended up skiing snowbird and alta, while skiing the steeps I could feel my foot moving around, thus loosing most of the control. Which then would put me in the back seat, damn near on the verge of out of control. After about four hours of skiing blown out crude my shins were done, and bruised. My ability to went down so far, and lost all confidence even on the piste. Laying into a long gs carve you could feel the boot move around, thus loosing the edge and chatter away from me. Boots truely are the most significant piece of equipment, and if you are a high level skier don't rent.
On a side note salt lake is insane, and I think I'm addicted. The size of the mountains is ridiculous, the steeps are insane. I meet quite a few hard core skiers that are going to show me the back country next time a come. I could only imagine how epic the powder is here. I can't wait to come back with proper equipment!