I think there built quality is superb. The only quirk I have found is operating their focuser from BackYardEOS via ASCOM - the software assumes the focuser is starting either fully in or out - and won't allow the focuser to move the other way.
Checked this with Guylain (who wrote the driver for Moonlite I believe). Solution is simple - start the focuser either fully in or out so the Zero position is the true starting position. In the past I always set focusers to half way out (at nearly focused) and fine tuned them from their. Other focusers travel in both +ve and -ve directions (in or out) the ASCOM driver or BYE itself stop all -ve direction travel when the focus position reports 0 (presumably to protect the gear).
Once you know this - its all smooth sailing from there!
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