Do you have electronics? I love Harris and have fished it with and without electronics and going after cold weather crappie is one type of fishing where it makes a huge difference. Slow trolling jigs or minnows through deep balls of bait fish is probably the most effective strategy. When I go without electronics I just slow troll a few cove mouths and points, turning around and making passes at different distances from shore until I get bites.
I primarily kayak and tend to have that mindset and when you said "drag", I imagined dragging a yak down to the water.
A general comment about Harris from my experience that I should have added before - the crappie seem to relate to the bait far more than to structure. It's unlike most other places I go where there are timber sections or bridges where you can stay in one spot and slay them. There are a few places that are like that at Harris sometimes, but I have generally done best on the move and moving around steeper points has been the kindest to me over the years.
Harris has far less structure than most of the lakes in the area. There are some humps, some ledges and a roadbed but it's more like a deep bowl, and that's why it fishes like it does IMO. As the water continues to cool, if you can find the shad you'll most likely catch fish because the crappie are on a serious feeding pattern until just before the spawn.