tough the 2 conventional schools of thought would be 1. match the hatch, now your sand eel weather it be a fly or a red gill has to compete with 3 metric tons of actual sand eels to get bit. 2. predator vs prey and bust a HUGE plug that gives the appearence that its looking for the same forage..
I usually sit and watch for a few when they wont take my stuff and hopefully learn something. usually though I think that when i turn around to leave.. one comes to the surface rolls on its side.. and gives me the "fin".
