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I do, I was going to do a quick review for Sidereal Trading who I got it through but I have not gotten a lot of use out of it just yet due to clouds. From the little use I have got out of mine it seems consistent position wise and without noticeable backlash, on my little ED72 it can rack the focuser through the full travel range quickly enough not to be a bother when you rack it fully in in to pack up or back out again setting up next time. Setup was a 5 minute job once it was mounted.
One thing to note, you don't need to buy a temperature probe with it (I did) unless you want to use temperature as an input from a specific area rather than at the focus motor. The early documentation at least, did not mention it but it has an internal temperature sensor which is disconnected if you plug in the one on the flying lead.
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