To stray off topic a bit, the above commentary demonstrates exactly why I prefer traction tires on my engines.
Yes, it can be another (very small) maintenance issue, but instead of having 3 or 4 powered units where two (with traction tires) will do is my preference.
Not only for cost, that is obvious, but for the issue of power draw and most importantly, the engines to mesh well together.
I am very concerned about the new 3rd rail F7’s (ABBA, all powered) syncing well with each other. On paper, it should not matter, but there have been more than a few threads focusing on problems of getting two engines to lash-up… probably user error, but now we are going to do this with up to four units! Hopefully my concerns are unfounded and for naught. Looking forward to seeing some videos from LOS with all four units pulling his El Cap.
Charlie