More good points here. Sorry, kind of new to this page so didn't know this subject was brought up before. I just flyfish for steelhead don't know why becase gear is more effective in winter. I realize a gear guy can get a longer and more effective drift than me so if he is slower down through a run it dosn't bother me much. But Sinktip is right about asking permission. I've found that by asking there is an exchange of words that usually are positive between two fishermen/women. Don't know how many times I've seen someone walking up river to fish the run I'm in and thought to myself this idiot better not drop in on me. The guy comes up and asks if I'd mind if he fished a ways below me, and you know what? I don't usually mind, it's like a positive connection.
As for too many people waiting in line at the top of the pool I don't know. Why would anyone arriving to a pool that is already being fished by more than one or two folks want to fish it any way? If the guys fishing it are good then they have probably covered the run real good and if they don't know what they are doing then they more than likely have moved the fish.