Pass Labs Amplifier Meter meaning?

I used to own the X250 amp and if I remember correctly the meter indicated the mode of operation. So up to the 12 o'clock position the amp is running in class A. Beyond the 12 o'clock position it is running in class A/B. Not a 100% sure about that though.

That makes sense as the XA is pure Class A.

I was told by Pass Labs that it reflected/measured bias. When changing from class A to class A/B the bias meter "bounces".

X.5 series amps - meter stays still means amp is operating in Class A. Usually that stand-still is at approximately 11 o'clock meter position. Once the meter starts moving, it means the bias is switching to A/B.

On XA series amplifiers, the meter, as far as I know, is there for looks only, since the XA series amplifiers are pure Class A operation only.

Given the reputation of Nelson Pass, I am amazed and a little disappointed to hear these meters are cosmetic only.

Agreeing that the meters look great, and in fact, are more than a small part of my lifelong desire to own a pair of Pass mono blocks.

But why not add some functionality? What a bummer.