I have one on my MK91... it’s very nice for visual... what’s your concern ?
https://www.cloudynights.com/topic/6...touch-focuser/
From a practical perspective the bottom of the focusser has four tiny grub screws to grip the baseplate so be careful how much weight you intend to hang off the back - it’s possible it may rip the whole focusser off it’s base and flexure of the base may be an issue for imaging.
The second aspect is that the roller drive is very free-running., ie it will tend to rack out under the weight of a heavy eyepiece - though there is a trivial solution I’ve posted on CN.
https://www.cloudynights.com/topic/6...er-steeltrack/
Lastly while there is a motor drive from TS it s pathetically slow - like a factor of 10 slow - which suggests it was geared for direct drive not 10:1 - but on these focussers the toothed pinion drives the 10:1 knob not the 1:1 knob. I’m considering making another drive using a stepping motor and a few chips but it’s not a high priority at the moment.
The wait for a FTF was impossible, they didn’t make a really low profile one anyway, and I couldn’t find a moonlight to fit - and I had to hav a new backplate made to suit which TS did for a nice price.