Has anyone ever used Equations Bizerk barrel system?

[BIG BOB]

its only 8 inches long and comes with three inserts of your choice. i read a couple reviews about it and it sounds good but i want to hear some more input. ill probably be putting it on my cocker.

[Dude]

I saw a guy testing one and a Halo on his Matrix and he liked, but he had a fourteen inch barrel, not and eight inch one. I looked really cool though. Also, the bore changing is way different than the Freak in that the bore changers actually go inside the staock barrel.

[2000Sabre]

I think what your asking about is actually called the Equation Multiswitch barrel system not the Bizerk. There is another thread on the forum which asked this same question. Here's the link http://www.automags.org/forums/showthread.php?s=&threadid=20580&highlight=Equation