I don't think it's a matter of the direct pressure on the river. I agree that 18 guys will have little impact during the time they are fishing, since the Henrys Fork already gets a significant amount of pressure. I was referring to the indirect effects, such as the thousands af poeple who watch the contest and decide "hey that looks like a great place to fish." In a few years, an already crowded fishery may get 2X worse. This exposure also carries over to other Idaho streams as well. I guess I'm somewhat of a selfish fisherman, but I like unknown rivers to stay that way. Even though Idaho is not a trophy trout destination like Montatna, I prefer to fish their because I know I wont have to compete with 20 other guys on a stretch of river. Besides the effects of added pressure, these contests also drag down fly fishing in general. Just look at bass fishing now. It's a joke. In those tournaments you have guys who wear shirts with as many sponsor patches as jeff gordons race car, flying down the lake in their $50,000 bass boat, who can land a 4lb bass in about 5 seconds. Add all the competition to this and what do you get. Hardly resembles fishing anymore. Fly fishing torunaments are not nearly this bad, but I'm sure bass tournaments had to start somewhere. The ideas of competing and fly fishing, just seem like two totally differnt things to me. I enjoy fly fishing, because its not a comercialized activity, I can relax, and I usually dont have to wory about doing better than everyone else.