Colin,
Does your Catt's larger leaf look something like this?
I have noticed on 2 of my bifoliate ones that I have a new leaf growth that has only 1 leaf that is quite a bit bigger than the rest with 2 leaves. I'm
not sure what causes this occurance, unless it's because the other leaf never
developed and the one leaf just grows bigger. It would be interesting to hear
from some of our long time growers what their thoughts are about this.