I've never tried fishing two fly rigs - anyone do this much? I've read a bit about it, but never tried. Seems to me if the presentation can still be made well, you'd cut your experimentation time in half
I've gotten in the habit of turning over rocks when i first get to the stream and approximate what I see - but I'm still trying to identify what I see - this site is very helpful in that..but I've got a long long way to go. Today I got as far as "hey that looks familiar - I think i saw it on troutnut.com...."
I also didn't notice any lighter bands of color that your pictures show, but they were covered with mud and silt pretty good. I suppose i should've cleaned one up a bit and looked more closely. Next time I will... I don't remember much about the slender ones.
I suppose I should I carry something like a little jar to snatch up a sample to take home? I suppose that would be the best way eh?
A nymph out of water looks like a cat after a bath.