Here's my initial thoughts after playing with my first Zero Effect last year...

http://www.huntingnet.com/forum/tm.aspx?m=1687790&mpage=1&key=pass%2csalt% 2czero%2ceffect&#1687790

I was just talking to Mark Land at Muzzy this morning, and he still hasn't had a chance to play with the new Bowtechs with the roller guards and start looking at what changes he'll need to implement to get the ZE's to work on the Marquis and Airbornes... When he does, I'll be putting that rest on all those bows. In the mean time, like I said, I've got a Limbdriver on all of them.

The reason I provided you with the link for investigative purposes is that the Zero Effect will work on the Black Ice; I had one on my personal bow. I did cross the cables up above the guard though, but it worked perfectly fine.