Many times I will use a plain hook w/ no sinker. I do however use a standard size sunfish hook on my pole. I know some people like to downsize their gear for ice fishing. I don’t. There are times I use a small splitshot just above the hook. Maybe an inch or two. It is small enough to sink the bait faster, but not too big that it spooks the fish.
Lastly, I rig the leechette so it lays horizontal when vertical jigging. Only about a 1/4 of an inch of the bait is hooked. I start @ the head and work the bait on about a 1/4 of an inch and push it to the bottom bend of the hook. When you look @ the hook profile “J” the bait should come straight off the bottom bend. Coincidently, this is not too far from the concept of the Senko by Yamamoto. You want the lure to fall like a natural bait. Try this, if you have an ice house and fish in an area that is not too deep and has clean water where you can see down, drop a redworm(don’t hook it on any thing) down the hole and watch it fall. That is the action you want to imitate. If you want, keep me in mind late it the winter and PM me. We can try to hook up. I have a fantastic spot for huge sunfish where thie technique works. Lots of fun.