Yeah guidescopes don’t have to be big and heavy. An OAG concerns me on a newt because, at least on fast scopes, they are so sensitive to the alignment of the coma corrector in the focuser...although I guess it’s no worse than a mono camera and filter wheel
Glen, my sense is that you might be happier going with a smaller scope that is less beastly and requires less outlay. I’m entertaining an 8” f/5 myself, seems like a decent enough focal length on most nights and 4x the light gathering of my 4” apo...mono sensors have their own charms of course
