Dieage
If you know where they are at go to your fresh water under ground springs dumping into the lake. Water temps on home lake were 40-41, the area at the springs were 45-46. One of the guys said he found warmer than that but not seen by me. You will see the bait balls up in there and the crappie will be close by.
I run slow and watch the temp running in SI one side left or right. Most of these are going to be in feeder creeks so no need to have your screen looking to far out. In using one side I find I can see the fish better with more detail. Water is not that deep here due to winter draw down so we are using a float and fly with BG jigs tipped with a minnow. This really slows down the rig and keeps it in front of them longer for this slow bite. A stripe or bass is not out of the norm if your into them. Deep is the norm this time of year but if you can find those springs you may be surprised.
Hope it helps but from the looks of that px, you got'em dialed in lol