What's the best way have you found to rig these? Under what conditions is best to use?

I used them in the summer, 5/0 super line hook with a 1/8 or 3/16 bullet just drag them or hop them reel slooow along weedlines. Watermelon red is the only color I tried so far.

4/0 EWG hook with 1/4 oz bullet weight. Variety of colors.

I use Uptom's Customs 9" dragon tail (trick) worm and straight tails year around rigged several ways.

Split shot, slip shot and Texas rigged brass n glass .

Slow down and drag it along the bottom.

Tom

Man, I love these and the magnum finesse. There is no wrong way to rig them.  They work wacky rigged, t-rigged, weightless, on a shaky head.  Only way I haven't tried them is on a C-Rig.

C rig

I hang them on the back of a Scrounger.

 

A-Jay

swinging football head or shakyhead. They're great weightless too. 

I bought some of the mag trick worms and the mag finesse worms today. The first thing I thought was, these worms are FAT.