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After slightly tightening the two grub screws for extra tension, in over two years of imaging with it, I never noticed any slippage with QSI WSG8, guide camera, and a field corrector on my previous refractor, and the focuser always worked as it should.
However, I do like a greater resolution of motorised FTF and after I learned how to use it, I now prefer my 3.2" FTF over previously owned (and loved) 2.5" motorised Moonlite. FTF really does feel very solid giving an impression as if one could hang a bucket (half) full of bricks off it.
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