GNine seems to have worked for me. When I say the "G scale on 9mm track? Are you mad?" heading to this section, it was "challenge accepted" and has mostly gone from there.
So far "Road Runner" and "Charlie the Choo Choo" have come about and worked well enough, "Splitfoot Mine" is on hold, and this effort is rising from the ashes of "Santa Clarita & Los Zapatos" - a failed, heretical On30 pizza which overcame my ability to lay track.
It was to feature two automatic station stop / starts, and after a lot of work these eventually worked. The track radius was just a hair too tight, and the project failed. This left me with a pizza base, a fair bit of electrics under it, and the bitter taste of failure.
A peruse of the C Arendt site produced "Scrapper Sid's NG Emporium" (scroll down a bit):http://www.carendt.com/micro-layout-des ... uts-contd/
so I'm going to pull down my barns and build greater, at least from a micro layout point of view.
Photos to follow.