My FA-1 is slowing thru the curves which are 54" 3 rail tubular. Is there a gage to check the track with? I probably got it squeezed or something while getting it together. Pushing the dummy loco thru it does seem to not roll as freely as it should. How is the best way to spread it out a little while in place? Don't want to take it apart if I don't have to, as I might end up with the same problem after putting it back together again. Thanks.