Aslan: I'm not obsessed with cores, I just use the low RG as a starting point in setting up my arsenal. I also use pretty much the same layout on everything to take that component out of the equation. Here's how my arsenal is set up. I use a system that is a lot like the way Roto Grip classifies their bowling balls, though I don't like the HP designation (Hook Potential) for obvious reasons.
Level I - Low RG balls with Asymmetric cores: Nirvana, Mastermind Intellect, Mastermind Scholar
Level II - Slightly higher RG balls with Asymmetric or Symmetric cores: Mastermind Einstein, Melee Jab
Level III - Mid-Range RG balls with Symmetric cores: Meanstreak Brawler, Radical Ridiculous
Level IV - Higer RG balls with Symmetric cores: LT 48, Soulmate
I make my selection for each bowling outing based on the surfaces that work at a particular center, the particular pair of lanes on which I'm bowling, and the weather. For instance, when I bowl at Red Rock at night, where a 25' head run is put out and the rest of the lane is "you get what you get," I will take one Level one ball (shiny), usually the Scholar, one level three ball, and both Level four balls. At the same house during the day, I'll take one level on ball, one level two ball, one level three ball, and one level four ball. The one common factor is that all four will be shiny, because balls with surface rarely work for me there.
My point is that the surface should never be the determining factor in selecting a bowling ball because it is so easily changed. If you understand the cores and take the layouts out of the equation, fine tuning an arsenal is very easy.
I am a proud member of Bowlingboards.com bowling forums and ball contest winner
Current arsenal
900 Global Badger Claw - Radical Ridiculous Pearl - Spare Ball Ebonite T Zone
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