5 x L421B985 - great air batch, first cpu CB is -105, will see if that was unlucky or batch related
serial number:
A3959 - 5ghz 32m 1.4v
A3820 - 5ghz 32m 1.32v
A3669 - 5ghz 32m 1.3v
A3629 - 5ghz 32m 1.34v
A3559 - 5ghz 32m 1.37v
sweetspot of serials is in 3700 - 3800 range