Has anyone run the JLC GG1 successfully on anything less than O-72? I wasn't sure if Lionel had their O-60 (??) at the time it was released or not. While the overhang is great, my Williams scale G will negotiate it fairly easily, but I think it's about .75" longer than the Lionel scale version.
Thanks and have a great weekend.
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It will do O-72 if your track work is good. If your track work isn't you won't be happy. I don't see it running on less than O-72
Scott Smith
Like Scott said, 072 is the absolute minimum. I've got all six of the JLC G's. If the pilot trucks are really loose and easily pivot they may handle 071.5. 
O-72 for sure!
We had a curve that was considerably less than 072 and probably close to 060 at one point at the apex with no issues. I think the Lionel version was measured as the largest of the several other scale Gs.
I have them all.
The posters above have it right on.
O-72 is the absolute minimum and as Scott said, the track work must be perfect.
Scrappy
I got one when they first hit, and she hated 072 ! More like 084 or even 096 for that chooch. Traded her for a Mike's 4902, and never looked back - at least for running.
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