i wonder if there are cameras available for monitoring hidden track operations?  Thx.

or would it be too clumsy?

is a return loop possible with two controllers?  gaps could allow 2 power packs, one for each power need.

I have a mix of n/s rail and alloy rail, (black n gray roadbed).  from what I've learned from this board, I'll solder the alloy whenever possible and grease the n/s track, and use it in hard to reach areas.   

thanks, Sid. 

I  wonder if dielectric grease would double as flux.