Good comment. The fall is much better than the spring. The PA fish commission will start to stock smolts. They can be a pain in the butt to fish around trying to keep them alive after they have bee hooked. Weather is also better in the fall. Spring has many 'wash-out' days b/c of higher water. Folks will try to tell you that means more fish, but not really so. Most of the stock strain fish are fall run fish.
Elk Creek Sporting Goods (Dan) and Poor Richards (Gary and Dott) are the best people to get information. Lake Erie Angler (fly shop) is also another resource.
Each person can tell you a range of things. The message boards sometimes have a bunch of jerks making dumb comments b/c they are bored.
Eggs, sucker spwan, blood dots, crystal meth. Pink, orange, and white are primary colors. 6-8-10s
Any nymph - 12 to 14 if the water is higher with color. 16 to 18 if the water is clear. Prince, BHPTails, Stones.
Use flour leaders with a dropper.
Presentation is more important than the fly. Drag-free and getting the fly in front of their face.