How does one rig a worm on this?  I’m guessing go through the bottom of the worm to the top?  Got a few packs from clearance a few years ago

Just looked them up on their website and I guess that’s what you do. Anyone try these?

Looks like you insert the head of the worm in the "keeper" looking thing then insert the hook point further down the worm to bury it T-Rig / Shakey Head style ... Bite Me makes a mean , very sharp sprout hook - I use their standard shakey heads quite a bit ...

I dunno.  When you figure it out, please post it.  Interesting.