Currier A/B split is not what we thought it was!

[Labyrinthinesecurity]

The proposed structure to sustain the A/B split is a 3-layers construct: a template system, a switch modulating the use of these templates (per folio), and an independent d/l dimension.

Thank you for the answer, it didn't clear up things for me, but maybe this will help the others.

Are there any implications for potential deciphering attempts or Voynichese generators?

Thanks for your honest feedback    I am updating the paper and I'm uploading the support material on github right now, I hope it will clarify things.

Yes, there are some implications for potential generators (generators are not meant to decipher, but I get your point): 
1) Discrete folio-level switching between two states with well-separated rates
2) Compatibility with a template system with fixed and switchable classes, where fixed templates are invariant to the switch and switchable templates respond strongly with no reversals.
3) A gradient, orthogonal to the bimodal switch
4) At least three functional regimes among character pairs (categorical, intermediate, free-variation)