I'm no expert by any measure though I do catch them.
I have noticed many ask about how to catch them and get great advice here but picked up something today that may be really key.
Went out to hunt some Carp this AM and didn't see but one or two strays scattered arouns until it started to rain a nice light rain seemed to bring out pods of them activily feeding near shore.
The kicker was that they were not nearly as spooky under the rain fall, I could easily walk within 5-6 feet of them and simply flip the fly out to them...had two chase and eat the same fly 2x each!
Dummy me hadn't bothered to bring anything greater than 4X tippett and in my early season trigger finger mode...I promptly broke off 2 of them that I did hook and like I said earlier, watched 3-4 simply spit the fly back out.
Next time 0X and wait for the turn and let 'em run...I'll get 'em.