Med?Heavy oil, the Blue to 1000 should work fine. You'll have to make sure you clean it after every set and every so often bath or into the shop for an oil change..lol.
The Cherry will work great on med to light as is OOB, so if you want to save a few $'s then get a Cherry and have the Blue taken down a bit. If you just want a med/heavy ball, then the Anger would be a good one to have.
For me, I use a Pain and a Toxic, neither in OOB. I like the reaction I get and make cover changes to fit what I think the oil should be on that given night. As a back-up, the No Mercy is always waiting in the bag.
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az guy aka: R & L Bowlers Pro
rlbowlerspro@cox.net
www.rlbowlerspro.com