Boy; I don't post reports very often, but when I do someone always get upset at me. Sorry Troy.
Anyway another week on the Thompson and the fishing remained great. I averaged six fish per outing each moring and evening. All fish (Rainbows) ranged in weight from .5 to 3lb. The "Fishmaster of Spense Bridge" Paul Lapionte outfished me again as usual with a 5lb trophy. Successful patterns last week were Joe's Hopper, Golden Stonefly Nymph, tan Stimulator, red bodied Tom Thumb, Alder Winged Caddis.
I find the Thompson to be a first class river for an advanced fly angler, providing enough action to keep you interested but hard enough too keep you going to the fly tying bench dayly, in hopes of perfecting a better pattern. While the lower Thompson is a great river for a advanced angler, I recomend you consider the members in your party, since this river is dangerous for and can discourage a novice quickly.
In answer to your questions re Springs moving through, in word "Squat".