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I was reminded last Sun night just how critical balance is for my Heq5. My tracking was ok, but only so-so on M33 for a 30mins. Then I realised I hadn't adjusted counter-wts to make the rig East heavy. Did so, and the FWHM of all the subsequent subs (and roundness too) was about 70% of those beforehand and tracking smoothed in RA a lot (also quite a bit in DEC).
Bottom line, weight and how it's distributed can greatly affect your performance on a given night.
Fascinating to read what the bojan and Brendan had to say on EQ6 bearings too. I'd thought about it in those terms, but make sense they'd be hard to wear out...
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