Haven't fished for them in quite some time, but when I did :
I never experienced "jumps" that lasted more than a few seconds, then re-occurred several times with a minute or two between them, and rarely lasting more than 10mins overall.
Most of the time I simply trolled the areas where I saw surface activity, mainly using 1/8oz White Silver Buddy blade baits, Cicada blade baits (white), or a Hot-n-Tot with a 1/16oz chartreuse marabou jig trailing on a 2ft leader off the front hook. 8-12ft running depth seemed to be the most successful depth range.
Casting baits were usually the White Silver Buddy, or Kastmaster (with bucktail). Kastmaster's were also used to troll with, then when multiple fish were caught in a small area ... we'd cast them out and let them sink to the bottom, lift them about a foot off the bottom & let them sink back as we retrieved them. Mud or sandy shallow flats seemed to be where the Kastmaster worked best.
We've tried trolling Flat A's & Wee R's for them, but only succeeded in catching a few small Crappie on them. I've heard of people trolling Shad Raps down around the Chowning area & doing good. I've done good trolling along the riprap bank at the Chowning launch ramp, but never used Shad Raps.
Boat traffic didn't always stop the jumps, nor did it stop us from trolling and catching them. I can't really say any of this was done in Aug .... but, it was during the Summer, since we fished for Crappie from daylight to around mid-day ... then we'd go trolling for Hybrids/Whites just for fun. I've only caught a limit of keeper size Hybrids one time, and that was deadline fishing on the bottom with 3" live Shad. All this was back before the "chicken liver" anglers started catching the bigger ones, if that tells you how long ago it's been.
... pappy