Drilled my Brainiac 55x4.75x75 (pin below bridge) with a pinner P3 to keep it balanced.  All of the asyms that I have been sent since moving up to 16lbs this summer have by pure chance all been 4" pins with the exception of my Guru Supreme.  The Supreme has been money for blending out heavier patterns with strong backends, but I've felt that I have needed something that I could step down to before getting into my symmetrics.

In terms of shape the Brainiac gives me average to slightly above average length due to the mild shine of the rough buff polish, with a heavy roll in the midlane along with a smooth arcing move on the backend.  I rarely drill polished pearls due to my roll and find that most give me excess skid in oil and sharp angles on the backend.  Although the shape may look really impressive to the untrained eye, those angles are difficult to control (see my review of the Mastermind Scholar).  The Brainiac's strong coverstock blends out wet/dry as well as any pearl that I have ever thrown and has looked great on a variety of patterns from THS to our scratch league's 45' Challenge Pattern.

The Brainiac fills a medium oil, above average midlane and backend void in my bag by being longer down the lane than my Guru Supreme (tank for oil), yet reading the oil a little more in oil than my Ridiculous (strong arc for mediums).  The Brainiac is a good step cleaner than my Ultimate Nirvana and Thug Life (which both rev hard in the mids) which gives me a superior option for straightening out my angles during transition.

The Mastermind Brainiac is a very usable ball that will bridge the gap between your stronger asyms and your midrange equipment.  Its strong cover will allow it to serve as a benchmark ball on some surfaces, but the Brainiac will shine brightest in transition as your #2 ball once your tanks have slogged through that first slick game of league or tournament play.