Engines were stopping at one location.
Found out they were shorting out.
The transition from spline roadbed to flat plywood now had a good one scale foot difference in height.
Had to stick a riser under the plywood to raise it to the spline roadbed.
Funny how things can move after only 38 years :[]
I find the thick foam packing sheets does wonders on saving the knees when kneeling on yard tracks.
A new 'chopper' just arrived.
Also, picked up some spike holding pliers.
They work a lot better than a pair of needle nose pliers.