Well, got a chance to spend some time on the radio today.
I calibrated the VFO with a good HP counter after letting
both run for about 15 minutes. I let things cool down,
and repeated and it was still within 1Hz.
I connected a signal generator at just below 7.150 MHz
and could it hear a tone (barely) to about -118 dBm.
I think I heard it lower, but it might have been wishful
thinking. I was listening to a Baofeng mic up to my ear.
Next was adjusting the bias. No luck there. With the
pot turned full counter clockwise I was getting ~115 mA
instead of ~150. Turning the pot made no difference, but
that gives me something to go on.
So, it could have been a better day, but not bad.