Just to add my experience with the sensor track.
I have found it somewhat unreliable. Bare in mind I can't complain at the help I received from Lionel & Jon Z.
Jon even sent me a lab tested sensor track to test against mine for faults.
However I still can't get it working 100% of the time.
As well as my home layout. I also have a LCCA modular layout which is wired exactly to LCCA/Lionel specifications. The sensor tracks show the same issues of reliability when used with this.
I can only think it's some form of electrical or radio interference maybe from my 60Hz inverter set up. However I get the same issues when running on 50Hz so I have discounted this as a issue.
Maybe some form of UK specific interference but I have given up messing with it and just live with it not updating/triggering every time it is crossed.
As others have said it's no hardship to manually enter the engine info into the Cab2.
Nick