I fish a small pond that has been stocked with some decent bass. Most are around 3-4lbs, with a couple that I've seen (not caught yet) that probably push 5lbs. It's a pretty clear pond (2-4ft vis), and has sporadic patches of vegetation around the banks, but none offshore. The pond isn't very deep, and it's got moderatle shallow banks. Most of the time I can see the bass fry and bluegills up on the shoreline. Usually at some point I'll see a "patrol" of bass, crusing these shallows. Then allofasudden these bass will back the smaller fish into a depression of the bank and have at em', which causes a huge commotion, even to the point the fry are nearly jumping out of the water onto the bank. It's tough to catch them when they're cruising, they're pretty much honed in on those baitfish and won't even look at most of the things you throw.
I've noticed this behavior for a couple of seasons now, and it happens very consistently. If you happen to be in the right place at the right time and throw a 2-inch floating Rapala Original you will light it up.....sometimes. But unless you do that, the fish are seemingly non-existent. During the hot summer, the bass retreat back into the deeper parts of the pond only coming shallow to ambush these small fish. They are very hard to catch when they're out deep, I've only caught a handful doing this in two summers. The catches were all with a variety of lures, so it's hard to pinpoint what tripped their trigger at any given time.
My question is what kind of techniques does this call for? It's inefficent (in my mind) to chase fish all the way around the bank, usually spooking them. Additionally, it's usually a waste of time to sit in one place and hope that the next ambush occurs in proximity to you, hoping their ambush will come within casting distance. I've done that for a whole day with no success, they must know where I'm sitting. I'd like to figure out what they're doing and what will set them off even when they're deep.
I've tried almost ever lure in my bag, fished fast, fished slow, fished high, fished deep, it doesn't seem to matter, unless you play the ambush shoreline game, they don't participate.
I'm looking for any ideas here......what would you try?