I've had both and never had a problem with either.
GSO has a rep. for tighter QA but ...who knows?
You could always just buy the tube and add a Zambutto /Pegasus /OOUK mirror.
But then you might want to change the cell. Maybe the spyder also. And that dob base is a little 70s - how about an Al or CF custom jobbie....
Never stops with Newts!
