[Ted]

When we set up our club track we really cleaned every connector first with 600 grit and then with IPA, and where necessary the contacts were bent to get optimum contact.
The finished track rails were first cleaned with a hard eraser and then again with sandpaper, but here ( it´s a somewhat sensible surface that doesn´t like scratches ) with 1000 grit.
And it goes without saying that a few power feeds ought to be connected.
We never had power losses.

Roland