Well said Bert
One thing Ive noted both with Pauls guidescope and with ballaratdragons is the scope rings dont actually attach directly to the main tube, which is good. I used to have a refractor guidescope on rings bolted directly to the tube but that caused flexure. Having the guidescopes either attached separetely to the mount like pauls or to the actual rings that hold the main scope like ballaratdragons seems to be the go for eliminating flexure.
I went for off axis guiding
http://www.aeroquest-machining.com/page9.html
Having the pickoff prisim in front means I can guide on unfiltered light.Only disadvantage is comatic guidestars.
Now when is the east coast going to actually get some clear weather?
Scott