I have an ASA DDM60 (hasn’t been in production for around 2 years) and it is hands down my best Astro purchase. Haven’t guided since purchasing it and until recently I’ve not found a reason to.
I’ve had one night out with a
Mewlon 250 at 0.4”/pixel and as you can see it’s tracked perfectly for 300s exposures but I at tempted to add an OAG as a safety net and run 10-15s exposures. I’m also running close to the 20-25KG capacity though and you’d be at around 50%.
I’ve done a lot at 1.16”/pixel with a 130mm refractor for 10 minutes and comfortably been able to get FWHM down to 1.7 pixels (seeing limited). Everything is about being able to create an accurate sky model. I don’t have a permanent setup and usually do 20-30 points which takes 10 minutes and allows the 300s exposures that I need.
With the Mewlon I did a process called MLT or something along those lines which does an optimising run of what you’re going to image for an even more accurate tracking model of a specific part of the sky.
Between ASA and 10 Micron one of the major differences between them comes down to the software. All ASA mounts are tied into their software packages; Autoslew to control the mount (connects to other software packages via ASCOM) and Sequence for creating the pointing models.
10 Micron can be entirely controlled via their hand controller. A few years ago a CN member wrote some software that ties their mounts into MaximDL for creating the pointing models.