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Optically they are probably the same. The SW has two advantages over the
GS: 1. Ease of use: The tensioner handle vs the springs. Both these are there to create friction in the altitude bearing to stop the scope tipping over when out of balance. But the tensioner on the SW is continuously adjustable and its easy to quickly lock and unlock while changing eyepieces or other accessories.
2. Finish of the tube. GS has a thin single layer coating on the steel. Sometimes they rust quickly sometimes not (luck of draw it would seem from reports from members here). The finish on the SW is a lot tougher. More like the enamel on new whitegoods.
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