The sky was exceptional tonight. Yesterday I was too exhausted to setup after a call from fellow amateur, Pak Aziz, asking me if I was actually out, up and observing. After managed to catch a -3 magnitude ISS passing low over the southern horizon, silently gliding over Crux, I setup the mount and Equinox. Planning just to photograph the moon, I did not bother to hook up with EQMOD (just yet). Then all hell breaks loose! The 2-star alignment was in progress. Pointing to Procyon... OK. Then slewing to Spica (which was very near the Moon), and that's when I noticed the mount started to creaked! Holding on the mount, I can feel it vibrates and seems to struggle moving the RA axis. No problem with the Dec axis. I was thinking probably the I did not balance the scope enough. So, shutting down and re-balance the scope, and slew again. And again it creaks, and this time it started to shudder pretty hard! Bummer! Ok. Troubleshooting time. I removed the counterweight and the Equinox, leaving...