I have a new TAMA HP900PWNBK Iron Cobra double pedal. Got it just 3 months ago and the slave side is already squeaking. I oiled the chain, but the squeak is still there. It squeaks when pressure is applied to the pedal. There is no squeak when you pull the beater by hand and let is swing freely. The squeak appears to be coming from the inside where the bearings are, but their manual says they're oil free bearings. I e-mailed Tama support several days ago, but haven't heard back from them so I'm posting this here. Any advice?