John, one other thing that has been productive, not in the technique or practice shooting arena but in the actual followup to shooting a dock ... is Vertical Casting. (explained in my article :
Crappie Pappy Article )
My theory on why this technique may get you a fish or two more, after you've caught fish from under a dock & the bite slows is because I believe some of those fish follow the hooked fish back towards the boat & upon seeing the boat (or after the disappearance of their buddy) they go back to the safety of the dock .... many of them possibly going deeper & hugging the stationary posts of the dock (if they weren't already keying on the outer posts to begin with). They likely were following the hooked fish in hopes of snatching/stealing a meal from them, then when that fish disappears & there's nothing left for them to eat they go back to the closest hiding place and set up to ambush another unsuspecting "meal" wandering by. Then a jig comes slowly rising up out of the depths and presents such a easy meal, the temptation is too strong for them & they chomp down on it. :woohoo That's my "theory", anyway !! :cool: