Thanks for the heads up rockinrobbie do you know if the coil on the revive is removeable i should of ask you before i wasted my money on these quess ill buy a vivi nova then they look easy to rebuild.I just got mine and they are NOT very rebuildable friendly (though not impossible). The vivi nova beats it for rebuildability but I have to say they perform extremely well out of the box.
(FYI, I'm talking about the revive.)