Zygarde Cube mechanics question

[CryHaddock]

When I made my 100% Zygardes, I always did it by shredding the Zygardes I had and making one from scratch using 100 Zygarde cells.

I noticed there was another option - to make a Zygarde using an existing Zygarde, and some cells, and I was wondering about the details of how that worked.

If you use 50 cells on an existing 50% Zygarde, does it become a 100% Zygarde but retain all its other traits?

ie can you get a 100% Zygarde in Johto, Beast, Master or Cherish Balls this way?  Or a shiny 100% Zygarde?

Edited March 11, 2018 by CryHaddock

[theSLAYER]

@CryHaddock the image here should be able to answer your questions:

(yes, Assembly using Zygarde + Cube retains traits)

 

 

[CryHaddock]

Thank you!  That's awesome, I look forward to doing it with the shiny event this year