I am the full roller the mighty buffalo was referring to. The Beat'n works good on heavy oil, starts to turn a little sooner than the anger. The anger is also a great ball which is good on medium oil. I am about to pick up my black widow bite today, so I'll let you know how that goes. If you have any other questions about full roller stuff, feel free to pm me. There are not many full rollers on here. I have no problems helping if I can.
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Always trying to learn more about the game and make myself better.