Cycas Multipinnata, Debaoensis, or Multifrondis?

[Merlyn]

I bought this Cycas from PT member ChuckG last summer, and planted it in the ground in November 2020.  He said he was pretty sure this was the actual Multipinnata, but that there were a lot of "hybrid swarm" types that are intermediates between Simplicipinna, Micholitzii, Bifida, Debaoensis, and Multipinnata.  The C. "Multifrondis" is a sort of random mix that looks a lot like Debaoensis, with multiple leaf splits.  Micholitzii and Bifida have paired leaflets coming off the rachis, frequently in 2 planes on Micholitzii.  Debaoensis has a rachis with a side branch that carries "hands" of leaflets from a single stem.  My understanding of Multipinnata is that the main rachis has side branches, and then the side branches also split into more side branches, each with a "hand" of leaflets.  But that may not be true. 

Any Cycas experts care to ID this one?  This is the first "mature" leaf, about 8 feet long and about twice as big as the last frond.  My wife helped hold up a sheet of white foam underneath it, so it would be easier to see the leaflets.

And here is the caudex.  Weeds for scale. 

 

[aussiearoids]

Looks like multipinnata leaf  .. usually only a 2 leaf flush