Have any of you ever use a technique called "slingshotting", BUT with a casting rod(pistol grip)?
For many years while growing up I used an old original Berkley Cherrywood Rod(pistol grip) to do this with. It was as limber of a rod as you could find back then.
For me, it started out more of a crappie/bream technique "slingin" jigs under the docks. Then it transformed into a decent way to catch finicky bass around and under those docks. The reel I used was my very first spincast reel as a youngster, which was made by Johnson(I still have both). For bass fishing, much like the crappie fishing technique I used, you let out 2/3rds the length of the rod of line(lure attached and in hand). Then I would hold the button in on the spincast reel, load the rod by drawing the lure safely back in my fingers, calculating to some degree as to where you wanted the lure to go and then releasing the lure to fly up under the dock. As the lure and line straightened out in front of the rod tip, I would let go of the spincast' button and it would "follow" the lure to its destination under the dock.
It was a good way to catch those finicky bass! but the rod is a little light in the area of backbone, but!!, you deal with it the best that you can, under the circumstances.
A variety of lures will work well with this technique.
There are a few articles out about this technique but it involves spinning gear mostly, which I've never used for this. I got idea for this technique from my Uncle who use to "shoot" the split-shot lead out in the water using a cane pole while fishing for bream/gills. I don't know who actually "invented" this technique in the bass fishing world, but I know I've used it even
way back in the mid sixties, lol.
I think I invented holey blue jeans too

(while on my knees shootin those lures/plastics way up under the docks!)
Bowed rods to ya!,
Buzzbait