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Happ USB Trackball MOD

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ScooterMAC:

 I have a HAPP 3IN Trackball and it has *SOME* sampling issues to say the least. I've read in the forums on how to fix this and a couple of people have suggested a Opti-Wiz and/or Opti-PAC. I wanted to know if anyone has done this before and could you help me out. I've never used any of these boards. Thanks,

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