> They didn't like that foundation at all, made a total mess of it 
> trying to rebuild to 5,3. 

About same experience with same results here (Qc, Canada, Russian bees).
I tried 2 years in a row with nucs. Sometimes they ignore 4.9 foundation
frames,
sometimes they re-built combs in between 2 foundations.
I'll keep trying anyway to make my own mind on the question. 
Nevertheless, if someone around had 4.9 drawn frames, I would save time
and effort.

Hervé
Laval, Qc, Canada
-- 
  Hervé
  www.emelys.com

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