[Elecraft] K2: 40 meter bandpass filter alignment: Best in RX or TX?

[Andrew Moore]

I'm doing a thorough realignment of my K2.

I've done a RX-only alignment of the 40 meter bandpass filters by listening
to a signal generator source while peaking L1 and L2.  Could I gain accuracy
here by using a DMM to monitor the AC voltage at the speaker output, peaking
L1/L2 for max AC on the DMM?  This is the method suggested (I believe in the
K2 manual) for more sensitivity/accuracy when peaking L34 in an earlier
stage of alignment.

In a later stage, I tune L1 and L2 when in Tune mode, for max power output
according to the K2's LCD.

Which is the most accurate method -- monitoring with DMM in RX mode, or
monitoring power output in TX mode?  Or are they so close it just doesn't
matter?

Thanks,
--Andrew, NV1B