[ATM] PLOP number of mesh rings

[Fabio Falchi]

Dear All,
thank you to all that answered to my earlier posts.
I'm now designing the cell for the 80 cm 4 cm thick f/4 mirror.
I'll use a 27 points variable angle cell.
I runned Plop using different numbers of mesh rings, in order to find out if
the number is critical or not. It seems to me that the cell parts change
considerably with the number of mesh rings. The cell parts dimensions 
changes several millimeters or more.
Am I missing something?
What can I do to find the best cell?
Dark skies,
Fabio Falchi
www.cielobuio.org