@AlanRail posted:John
Try running any of the scale Lionel GG1s that require 072 on a hand-bent Gargraves track that is slightly less than 072.
On the scale GG1s, Lionel changed the way weight is distributed to the wheels. Lionel puts part of the GG1 weight on the front and trailing trucks. If these are not on 072 I have had them de-rail.
My JLC GG1 and a Vision Line model have made it around my mainline a number of times without an issue. As Dan says, that's an installation issue, not a problem with Gargraves track.
