I have been having a few probs with exposure on faces lately and realised I had accidentally not switched my zebras back down. Now set at 70 and happier. My question is the yget function readout runs from 0-100 scale. Is this close enough to the 0-109 scale to use as a secondary spot meter using the function square , or does it work on a different scale? I see from Barry's book that yget works on absolute brightness but isn't that what the zebras do?- or are they a totally different range?