hi.
I've always done pretty good with long lining for Crappie.
You won't catch as many but they are usually larger.
I use both jigs and Bandit Crankbaits - cruising at .50 to 2 mph.
Jost toss the lure out behind the boat as far as you can while running
then pull out a couple of more arm lengths. then wait for the tap.
Sometimes I will also catch a large cat or Saugeye.

Be safe all.