Hammerman thanks for the indepth advise, sensible tips.
A good device would be a combination of the Telrad and a Right angle finderscope. An illuminated finderscope with adjustable magnification, with dual cross hair lines and similar circular pattern to a Telrad.
I have a GS 10" Dob same as the original XT10's, before they switched them to Synta.
Regards
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