If you are interested, I figured out why your Bias would not dial in. The board house, when they populated the Surface Mount Resistors, got a resistor wrong. Not all boards have the issue as I have some here that is correct and some that have the wrong resistor. You have to look at the resistor in question to verify if yours is wrong. They got a few .68 ohm in where it should be 680 ohm. Look at R811 right next to pin 12. If it says R680, that means it's a .68 ohm and will need changing. You'll have to look at it under magnification. I'll give anybody affected the option of returning the boards for a 5 minute resistor swap, or, I can send you the resistors to fix it yourself, or I can send out new boards. I'll pay for shipping both ways, or you can return the boards for a full refund. That's what I get for trying to keep the price lower than the through hole boards. It looks like everything else is fine so it's your choice. PM or email me. The sets we tested and installed worked great, and sounded great as the only difference is the resistors. I must have gotten lucky during testing and I had the correct resistors on the boards I used and a couple other guys who installed them got lucky also.
It only took 5 minutes to find the issue. I had Zekeman send his wacky boards to me and as soon as I got them on the bench this morning, I went straight to the Pin 12 circuit and with the aid of a magnifying glass, it was evident he got a .68 ohm, and I'm sure Miguel has the same issue.