We did experience a clearance issue on the curve in the northwest corner with my Polar RR train. Track 2 curve is closer to track 1 than it should be. Track 2 is slated to be relocated in that area. The Big-Boy clipped the door of the Polar RR's first box car midway thru the curve.
Track 2 got its re-location done last week with 4.5 to 5 inch clearance between the curves there. Bring on the Big Boy and the Polar Express train! No more restricted running there! Just have to test out track 1 and the trestles.