I actually have tried the following "non-standard" senko approaches with marginal success
1) Weightless T-Rig as topwater. Reel just fast enough to form a wake. Done this through lilly pads. Had some strikes but not much.
2) Weighted T-Rig dragging along the bottom. Keep bottom contact keep it moving. Much more successful than #1
3) Weightless twitched like a fluke. I let the senko sink to the bottom, wait a sec or 2, twitch it up and let it sink again. Caught a good amount of bass doing this.
This is besides the typical stuff you do with a senko (wacky, etc.)
It's all up to your imagination IMO. I like to experiment with all my baits. If it works then you have a new "trick" if not then move on to something else.