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Maybe “heavier” is not the best term to describe the mount?
Ideally, it should have a smooth periodic error that can be guided out by the auto guider system. A heavy mount can still have “spikey” periodic error where the worm gear/wheel combo makes sudden “jumps” due to poor manufacturing/machining tolerances. It is almost impossible to guide out these large, sudden jumps when imaging at long focal lengths for say, 5 to 10 minute sub frames.
Think of gently rolling hills with smooth, undulating valleys and tops, as opposed to sharply rising mountain ranges with steep valleys and soaring peaks.
Cheers
Dennis
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