I'm from NY and just returned from an archery hunt with Winterhawk. We were in the Big Springs camp (there are 2 main base camps) and I was the only trad guy in that camp. I spoke with Larry and Laura a few times about trad gear before booking and got a good feel from them about it. For the most part, they respected your choice of bow and challenge involved. In camp my guide and other hunters and guides were overall very supportive. They seemed genuinely interested and curious about it and were respectful. It didn't hurt that they could tell I practiced quite a bit, had great equipment, and took the responsibility and hunt very seriously. I also was very impressed how much more emphasis was placed on getting close and arrow weight as opposed to type of bow, and that was from everyone there (compounds hunters and guides). In general, people seemed more impressed than skeptical of my recurve.
The hunt itself was very tough due to the terrain and very warm weather. The flat tops are spectacular but the area does receive quite a bit of pressure and you really have to work for the elk. Although we did not kill an elk it was quite a wilderness adventure. Overall, Winterhawk is a reputable outfitter that runs a good operation