if this counts then yes i have had success with the reverse snowman.i have been counter balancing my pop up with a piece of sinking corn on top with excellent results.
experiment with different sizes of rig tubing until one fits on line then push bead on to small piece of that tubing.also i think you can buy beads to fit flourocarbon .
the main thing with chods is that the top bead will slip off the leader/leadcore with very little resistence.this will allow just the "chod" link to be attached to the fish if you have a line breakage.hope that helps,ian.