Hi Norm,
Why are you always directing all your posts at me ? i'm not the one buying the dob
Fyi I am thinking off getting a 12.5 inch obsession as my first premium observing tool. Either that or get a Skywatcher 12 inch truss dob with tracking and then spend the saved money on a plethora of 82 & 100 degree Explore Scientific eyepieces. And then do the ATM thing with a feather touch focus and rigel viewfinder etc.
I do wonder though, would I get much improvement out of the skywatcher mirror if I got Sachmo to refigure it? Once again whats the strehl and P/V of these GSO and skywatcher mirrors, has no one tested them?