I have been running circles (literally) with my Fine Track Set, and some ovals as well. Been testing how the 16m (35.5mm) chassis is running on the tracks and to understand the ins and outs of using the Fine Tracks. Previously I have only been running the DB ICE 3 set on the standard tracks with the raised bed and it worked perfectly.
With the Fine Tracks it becomes more tricky because they don’t have a perfect fit. It illustrated to me how the smallest miss alignment or “bump” can cause an issue on this scale. My test runs have not been under ideal conditions in any way, the tracks were not flat, they flex as the engine drives around etc. I had some derailments and stalling but it was always an issue with a gap in the track joint, or some misaligned track. If I carefully reconnected and adjusted the tracks, did some “polishing” (abrasive paper) and/or temporarily fix the track I could make the operation smooth.
It is impressive that despite the less than ideal set-up it worked fairly well, the magnetic wheels is a great “feature” in this case. The bottom line is that I am confident it will work but I need to be very meticulous when I lay the track and respect the size of the scale.