rsquared... thats a lot of info

Nymphs definately fish better in fast water
Are there even stone flys in the stream? Not every stream has them.

The delayed harvest fish are most likely gonna want to see somthing more of a direct iimitation. Instead of a hares ear(I dont do well on this fly), a pheasant tail would most likely be a better option if you cant match the naturals.

Wets... you gotta match the hatch on tough fish, if you see blue winged olives, get a wet with an olive body and dun colored wings. Tying your own, really helps here cause you can get the exact color combo you want. Best generic wet by far is the leadwing coachman.

Hatches vary by streams, the best information I can give you is learn the characteristics of most species and when they hatch. I recommend you buy this book and keep it with you for awhile. It shows all the hatches in the north east, you can catch a fly or nymph and look for it in the book. It has the nymph stage as well as the adult stage of every mayfly you will ever see.
http://www.amazon.com/Hatch-Guide-New-England-Streams/dp/1571882103

As thedrake said. I,ve been fishing below a dam localy and doing real well with beadhead pheasant tails and caddis, 12-14. Watch your indicater for any movement,pauses or downright disapearing under. Can,t go wrong, add weight to the stream flow. You,ll have a blast!

kyler if you want i have tyed up a few sparkle spawn differant colors chart,pink,white,blue,peach or flesh color, i can send ya a few to get ya started no cost to you.But from what i have been reading and talking to the boys that fish that area olive bead head hares ears.let me know. paul
 hey i read that you are going in the service my son  leaves may 22 airforce.well good luck guy in your endeavors

Sure Id never turn down anything that people what to help me out with. We changed our plans on where we are fishing the first day....going with my dads good friends where we always fish the first day Raystown branch of the Juniata in bedford above the Dew drop inn... guess thats another river I gotta learn the hatches and nymphs.

Good thread....I used my flyrod last opening day, I changed flies often, and the only thing I had luck on was a white wooly bugger with a small splitshot about a foot in front of it. Either dead drifted ,on a strike indicator, or roll casted and stripped in. Most of the fish were brown trout.

heck yea bings use 22's for the native brook trout streams in western pa. some midge's can be tyed on something as small as a 28. So my suggestion is keep the flys and get some clip on the hat magnifiers so you can see to tie on and good luck

Will an ant pattern work this time of year ?

While I like to fish sub-surface as much as I like a sharp stick in the eye, for 1st day pelletheads, that is the only way to go.  I agree with the wet fly thing, but if you would rather fish nymphs, I suggest that you only need to tie two.
 
Nymph 1 -- spin a ball of dark olive deer hair on a # 12 hook.  Clip the bottom flat.  This is called the Trout Chow fly.
 
Nymph 2 -- do the same thing with yellow deer hair.  This is called the Corn fly.
 
Put enough weight about 6 inches up the line to have the shot ticking bottom and go to town.

Kyler,
It wasnt too long ago when I first started fly fishing, let me tell you a few things that i have learned. For early season fishing like this I would stick to nymph fishing, try this with a float but make sure the fly you are using is close to the bottom. Also one of my all time favorite flies are wolly buggers, these will work well this time of year Brown Black Green White and olive. As for dry flies I would not be too concered with them right now, I usually dont use them till mid may. But a god dry fly to have in your box is an parachute adams this fly works well. Hope this helps.

Kyler-  How'd you do?

yes kyler how did ya do guy was wondering how the sucker spawns i sent ya worked for you.paul

the fish we real sluggish, but around 930 to 10 the fish turned on. used the stonefly nymph and a san juan worm.... they loved that combo. got 5. but right after 10 nothing bit til bout 130. but i was just happy to catch a couple.