What should bias read for 6L6 tubes in Coliseum Mark IIC+?

[halebox]

The mismatched tubes in there read around 37 ma so I went through my pile of STR387 and matched around there. Sounds great just wonder if I'm way off.

 

[halebox]

Geez this board is slow! I found this not sure if correct
Bias for boogie
2. Negative bias voltage has been permanently set during amplifier burn-in and should never need adjustment. Correct bias voltages varies according to amplifier model: Measured at pin 5 of each 6L6, the correct bias for Standard Sixty watt models should be -47, Hundred Watt = -52 (or -47 for Hundred Export) Simul-Class: -56 and -46 (-46 and -37 for Export Simul-Class) Series 300: -56.)

 

[halebox]

Yes Im using a bias meter that you set the tube in then into slot. The tubes are all str387 and 1 mesa 415 that was in there which I measured to get the 37. Not simulclass. It sounds great and not red plating so not too worried. Just wondering if I decide to order 6 non-boogie tubes what MA should I be looking for.