This is because there isn't enough running space on the layout for my fleet to get a good gallop up before it finds itself at the other end, and as a point to point shelf layout there also not enough real estate for a complete loop for some "roundy, roundy" action.
'Mind the step'
With enough roller assemblies for six axels, I have the resources to give three, four wheelers a whirl at one time, also the set includes spacers for those who choose to operate in other gauges, now to get the good laptop off the bride so I can start dyno testing the DCC fleet with JMRI.
A closer look.
Eventually I will set up some track on a plinth with both HO and N scale, with a feed from the layout operated/isolated by a switch, for running in/ programming purposes, as the only place I can slot these rollers on the layout is on the open ballasted track at the Ammo factory module
Watching the wheels turn but not going anywhere,