Hello first and foremost to all, this is my first post on FAOL, BB so if I have placed it in the wrong catergory please forgive me. I am from Wales in the U.K and have just booked a trip to fish in Montana next June, I have done a little fly-fishing in the US (Maryland)but next year decided to do it properly and get some guided fishing, this is my part of my problem how much is a guides gratuity (tip???), I don't want to embaress myself by not rewarding him/her correctly so any advice from you guys would be grateful. Also some advice on the "salmon fly" which I gather will be prevolent on the streams would be helpful too, many thanks Richie.