Left handed, 15 mph, ~400 rev rate, PAP 4 1/2" over 1/2" up, drilled Nirvana 50*x5x35*.
The Nirvana is one of only 2 non-Radical bowling balls I have drilled in the past 2 1/2 years. This ball provides a shape I have not seen in any bowling ball in quite some time. Mind you, I am used to seeing Guru's curve a lot and maintain exceptional energy through the pins, this Nirvana is just sick! I have adjusted the cover to 4000 wet sand. As you know, some balls/drillings help you play straight, others help you curve the ball when the situation requires it. This is a ball that can cover some boards! I also have drilled a DV8 Vandal that allows me to move right and open the lane. When I move out of the Vandal's "sweet spot" and need to make a ball change, straight to the Nirvana I go and adjust a few boards as needed, boom time, right back to putting 10 back.
Brunswick, DV8, Radical are all making the absolute best covers right now, hands down. Variety to give a bowler everything they need and this happens to suit anyone who wants/needs to cover some boards to knock over a lot of pins. Don't just believe me, research some of the scores that have been posted with this ball. It really is special.
As I mentioned, I have only drilled 2 non-Radical balls in the past 2 1/2 years, so I have limited personal experience with many of the Brunswick balls...however I am more than happy to help research what might be a good choice for you to fit into your arsenal. Shoot me an email at: ChrisHeringer@gmail.com