SHRED wrote:
I seriously twist my line while d-shotting.

Would a swivel above everything help?

Yes it helps, all but eliminates it totally

Would it hurt the action when I shake the bait?

Not with any baits I've used

I try retrieving slowly but it still twists.

The twist is coming from the way you have placed the hook through the
lure, a lot of it can be stopped by carefully aligning the lure on the
hook (with most lures)


--
Rodney Long,
Inventor of the Mojo SpecTastic "WIGGLE" rig, SpecTastic Thread,
Boomerang Fishing Pro. ,Stand Out Hooks ,Stand Out Lures,
Mojo's Rock Hopper & Rig Saver weights, and the EZKnot
http://www.ezknot.com