I know the technician spoke with Mares directly --he is someone with a sterling reputation in the international dive community and if he said he spoke with them he did. I also know of someone else who spoke directly with Mares and got the same result.
The reason it sticks out in my mind was both folks told me very similar stories about Mares' reaction. Both are really unimpeachable sources as far as I am concerned. Honestly, this seems like a pretty simple solution --retool the dye, spend a few bucks and solve the problem.
I have personally not spoken with Mares about this. It is really more of retailer/shop discussion, I think.
I hate to criticize any company in a public forum --at least I try not to. But the OP is going to be buying a reg and, as I understand it, taking it to a place that service might be more difficult so I though he'd want to know about this.
Again, it's not really the question about the problem, it's that at least two merchants who sell Mares regs had the same experience that is disturbing to me.
Jeff