On my Phantom, I have an 11"
Fr-antom - Freak Back Barrel that I got through WhiteWolf

(I bought it from him on ebay figuring that it would be safer to do so, considering his recent reputation for unreliable business practices through his regular web site). It works very well, it IS accurate.
To go along with it, I purchased five freak inserts, but use almost exclusively the .682 and .684inserts, and on a rare occasion the .687. It seems that the balls have shrunk enough, that any size insert bigger is HUGE and completely ineffective.
Along with the Freak Setup, I also have the
ASP O-ring Modification. The combination of the oring mod and the Freak inserts has almost completely stopped any problem with rollouts. Some people might consider having both overkill but I HATE Rollouts

.
I believe that a freak bored Phantom barrel is the Best Setup. I'd rather have the "Cleaner Looking" Standard Phantom Barrel Look than the "Dye Boomstick Look" of the Fr-antom Barrel.
I am REALLY Happy with the Setup!
WoodsBaller57