I've made a pendulum on mine so that it is always east side heavy no matter what side of the mount my scope is on.
I've attached some VB cord to the counter weight shaft and slipped the noose up as far as it will go. Then wrapped it around the the setting circle a few times (well just above the setting and have a 1kg weight hanging off the end. I've attached a small arm with track wheel on it to guide the VB cord and to ensure that it rolls on and off smoothly. It works really well. You just need to make sure when you do the initial balance you don't have the counter weight on.
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