I am looking into getting another ball. I have a high ball speed and i want something for heavy/long oil patterns. I am in a toss up between Brunswick Mastermind and Roto Grip Hyper Cell.

Any suggestions? How do the two differ?

Wait 2 weeks and get the Hyper Cell.  The 7lb Nucleus weight block inside the ball has always hit like a Mack truck (still use a Rogue Cell when needed).  Throw in the MicroBite cover from the Defiant which is great on heavier oil for higher speed players and you have one awesome ball in the arsenal.

Here is the video that explains the Hyper Cell:
http://www.youtube.com/watch?v=XPM5lj2qKCA

If you want the ball now, go with the Mastermind. If you can wait a few weeks, go with the Hyper Cell.

You can't really go wrong with either. Me personally, I love Roto Grip's "high performance" cores, especially the way the Nucleus and Paragon roll. So much continuation through the pins. Also the covers are very versatile and take well to changes.

Great shooting, Larry.

I do love the Mastermind, and I'm not biased at all!

Either way, you can't go wrong. Both balls are strong and will chew through oil patterns. I personally will have the HyperCell because of the 7lb heavy rolling Nucleus and the Micro Bite solid cover. I have no need for two oil drinkers but I've drilled a few Masterminds and they are stupid strong. Price considered, Mastermind. If you can wait, Hyper Cell.

Either. The Mastermind has more surface at box finish.

Who is worried about 20 bucks!? I mean really..

to a 'read in between the lines' consumer and a retail manager...the lowest price on the market for a he ball shows inferiority.   

It's true, I'm just saying. The better product is never a "deal."  I know the sync didn't sell the way it was supposed to, and now that "rebates" are back, storm has a 20 dollar rebate now too.

*Throws a chair into the middle of the ring*

Forget either of them! Get a AMF Incinerate!