Hawk here are some specifics. First of all if you would probally be the first person ever to just fly out here to fish for just chums. LoL The best time would probally be the first two weeks of November for nubmers of fish. If you come earlier youll find brighter fish but you are playing with fire as in not getting anyfish.
The best bet would be the Skykomish and the Skagit. 10-15 fish days at this time of the year on chums are very common. Kwikies, plain ole drift gear and jig and float are going to catch you the most fish. The nice thing about the Skagit is that it is very condusive to the bug rod. You can have 10 fish days atleast on the Skagit fishing the fly. They can be an incredible fight on the bug rod and on the Skagit they have all the room in the world to run and run and run and horse you around. Another bonus to the Skagit would be the bald eagles. Eagles are everywhere at this time of the year gorging on the chummies and because of this you will not have the river to yourself because many rafting trips are run just for eagle watching. But both the Skagit and the Sky during midweek can be secluded but everyyear for and more people fish for chum and this year at Teds I showed by far more people to fish for them than the 2 years before combined.
Woa Ive blabbed on and on for a long time.
If you wanta to go with a guide for a day or two ask Robbo or give Joe Gallagher a try, hes a blast to fish with. www.washingtonsteelhead.com You might reconize the guys in the pics as Bryan and Kent from Teds but no me LoL
Tight Lines
Ryan S. Petzold