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I have the 16" GSO and it is a very good scope for the price. I built a new base/mount for it out of marine ply because the stock one was so heavy, this makes it easier to move around. Using the old wheel barrow handle trick I can move it from the shed to any spot in the yard easily. It also breaks down into three pieces for transport, so in some ways it's easier than my 12" tube dob to move in a vehicle. I looked at the Lightbridge as well as the GSO but the price favours the later, and the GSO ALt bearing is a much better design than the old style Lightbridge. Some will argue that the lightbridge cross strut style is stiffer than the box strut design of the GSO but they both have drawbacks and can show flex at various altitudes. Collimation at 45 degrees is a good idea. BTW with these two collapsible dobs you will need to collimate every time you take it apart and put it back together.
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