This is actually the first "buzzy" unit I've heard reported, and any factory will have some defects slip out the front door. The red dot and blue dot revisions have been design changes, apparently unrelated to manufacturing processes. I don't know that there's anything more than normal production problems. Unfortunately, you got hit with a bum unit. Good to hear that they're getting you fixed up, though.

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gonk -- Saloon Links | Pre/Pro Comparison Chart | 950 Review