I have had a play with CV 54 & 55. I put cv 54 to 5 and cv 55 to 55, this has made a dramatic improvement.
The downside I didn’t have all the coach’s in the train when I test run it. Under load it preforms slightly worse, just needs a bit more cv tweaking I hope. A learning for next time!
Looking at the traction tyres they are on one axle both sides
will post the final cv settings
Andy