I want to install a spindle on my X-50 Woodworker. If I install the 80mm Z-20 Z-Slider do I also need to install a Stiffy? Thought I would ungrade to the Z-20 rather than purchase the 80mm mount for the original slider. Thoughts? Thanks in advance…
No, the z-20 z slider does not require a stiffy to instal.
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You don’t “need” it, but it looks cool. 
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