Hans check the SS-one message board, saw one message about a problem with installing on a EM-10, the system probably going through the maturity stage but seem of the retail stores seem to be picking it up like OPT and Hutech....
https://plus.google.com/communities/...03979566788217
https://digiborg.wordpress.com/2018/...do-controller/
Also there’s the Onstep Goto system
http://www.stellarjourney.com/index....uipment_onstep