I have the 34 miles of the Port Jeff ca 1965. If you want to beta test it, send me an email at [email protected].
It is not as good as I want, but the grades, curves, switches, crossings, and terrain are all pretty close to reality. Almost everything is within one meter vertically.
On the bad side, it has BO color/position signals. I tried the PRR type, but the aspects couldn't be seen from more than 50 feet away. So I went back to BO. One small curve east of River Road in Smithtown is missing. A small vertical curve west of Old Bridge Rd. in East Northport is missing. Syosset is off horizontally from reality by over 200 yards, but it looks ok. Many smaller things. One guy wished that I got the Y in PJ to work. When I got the track to connect, the locomotive went into the twilight zone so I change it back.