I would like to expand my Christmas layout enough to add the scale Williams GG1 which needs a 42" minimum curve. I have a semi-scale GG1 now but would like more scale. I'm thinking of trying to do 48" curves to save me from any headaches in the long run but I'm limited in the size of my layout and 48" would push me into the hazard margin because you need to add about a total of 3 1/2 inches (two sides) from track centerline to the 48" which basically exceeds my envelope.
Does anyone with the Williams scale GG1 have issues running it on 42" curves? How about track inclines and descents, is there enough vertical freedom in the trucks to accommodate elevations in the track?