I do something very similar except with an open hook jighead. Do-it has a mold called the tube and tail. It's made to specifically rig a worm or whatever on the shank of the hook before stuffing the jighead in the tube. I use tubes ALOT! It's my primary bait. I t-rig them, open hook jighead, and my favorite in certain conditions is to rig them stupid tube style on an EWG hooked jighead. I've often thought of rigging them with internal weights and weedless but have never done it. I may just have to try it this year
Clint