ATM about dog biscuit and pitch lap channels

[Hugues_Laroche@aia.com]

As per the thread running about effects of channels
width and depth, is it not recommendable, to avoid
"dog biscuit" effects, to make the laps small squared,
deep channels i.e. more "flexible"? Does the same
not improve behaviour for figuring fast or strongly
deformed mirrors?

Sorry, that are just questions, I hope not to be
"beside my shoes" as would say French people...

Hugues