A few of you had asked a couple months ago if frost would be a problem?... digging dirt there's no issue with the ground freezing, but the frost build up on the exposed cement ceiling whenever the temps get down to -15 to -20C for a few days, frost gets about half inch thick, then when it warms up again right away, it makes it rain in the tunnel!

... a bright sunny day yesterday & near 0, a lot of water steadily drizzling all day

,... used a small space heater overnight & the ceiling was thankfully dry this morning.
Shot this vid a couple days ago... 5mins afterward, the 2x12 Sabertooth, one motor output operates the swing, it suddenly QUIT!

It'd been in the JD850 close to 4yrs. Don't have any more 2x12's on hand, but did have a 2x25, it's overkill, but it's working again.

The radio settings for the 2x12 don't transfer to the 2x25

Hope I can make the 2x25 function as smooth & precise as what the 2x12 did.
https://youtu.be/kNP10Y2_878
And here's a vid of the Izzybilt dozer leveling the dirt piles in the adjoining room.
https://youtu.be/NApC1-KCsGs