Quote Originally Posted by gnashings
Oh no - I did not take it as an attack by any means! I just feel really bad about potentially misleading people with what I held as fact...
Well, for what its worth - the claim about circuitry was but one, and in light of all the other advice and comments on the various links and pages, I decided to go with an air-zinc cell. The overwhelming consensus seems to be that your meter will be off iwth 1.5 volts.
I recall reading that specific piece of info on Karens site when I picked up my first QL17 GIII. I use a 1.5v battery and have had no issues with metering, although I usually run only B&W film through it. The meter compares within 1/2 stop of a friends Leica M6 so it's close enough for me.