I am relatively new to fly fishing and brand new to fly fishing in Alaska. I am going to spend 13 days in August fishing for dollies and grayling on one of the lower tributaries of the Noatak. I hear alot about wet fly swing and drift fishing streams. Could some one tell me how to do this and recommended leader configurations. What is the best way to add weight to the leader. I have used some split shot but it keeps coming off. I will be taking a sink tip and floating line. I have 7 1/2 ft and 9 ft leaders for the floating line and some 4 ft leaders for the sink tip. I am curious how to fish flies like polar shrimp, battle creek specials, mickey finns, and glo bugs. Any special techniques? I know this sounds like simple stuff, but no one I know here in Nome flyfishes very much and I really want to be prepared for this trip. Any suggestions, as always, are greatly appreciated.