After taking a closer look at the slop on the axes, I went back to Marlin + Octoprint. RRF doesn't have backlash compensation feature so Marlin it is for now.
When the motors are locked in position, moving the axes they do have some slop which shows as artifacts in prints in certain cases, for example holes are kinda skewed and as shown with the box, can result in a noticeable shift.
Need to tune the backlash properly. Still the things I usually print with my Dollos aren't too bothered about small errors in movement...

Received some goodies, a 340x310 PrintBite and FlexDrive G5 HW kit. I have some 3mm aluminum plate I've already cut, just need to drill the holes, order a heater pad for it and reprint some bed carriage parts to get full size bed.
The G5 Flex was a bit of a last minute purchase decision, I want to see how well this kind of extruder works. If it works as advertised, you'll kinda get the best of bwden and direct drive - very light etruder, but still direct drive.
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