Rolf (SkyViking) designates his design as a Serrurier, I am working on the same principles. centrally balanced so any deflection in any direction is self cancelling. I'll stick with my naming because that is what I am attempting to achieve.
Tester ? what tester ? Based on Garry's reputation and the description I was given of the mirror by the University of Dunedin who have held it I'm expecting the mirror to be pretty damn good.
Garry Nankivell designed and built the lenses for the 1 meter scope at Mt John in Tekapo. He also designed and finished the big multi segmented mirror for SALT in South Africa.
I guess I'll find out when it arrives. Maybe I should build some sort of tester although I confess I didn't expect to be building any 'special' scopes except using commercial mirrors.
Now you've got me worried ....
Anyway I've cut the rings and spacers for the UTA. The workshop is full of router sawdust.