Should I or shouldn't I?

[ndbprr]

OK here is the dilema. I am about to start construction on my full size mile and a half from North Philadelphia station east on the old PRR. Layout will be a dogbone four track so the inside two tracks are a loop and the outside two tracks are a loop. The basement available is 20' x 40' so allowing a ten foot loop at each end stacked over each other I have roughly 90' of actual track which is (drum roll please) almost a mile and half of PRR mainline in the heart of the high density area of the corridor. I will stack the west end loop over the east end loop since there was a natural elevation difference in that area that would replicate BUT!! Assuming that someday I might complete this thing and want to extend it if I put enough elevation change in now (say 12-14") I wouldn't have to adjust anything in the future. 14" difference over 90' is about a 1.5% grade or should I just put in a 4-6" rise (.5-.75%) and adjust later - like ten years from now?

[ereimer]

i'm not sure how you'd adjust the grade at some future time so i'd have to say build it in now

[pcarrell]

NOW! You'll hate yourself later for having to redo it when, after all, you did have a choice. [8D]

[selector]

Yup, I vote for now. Why? Because in ten years, you won't be up for doing it; you'll be well on your way to tearing the whole thing down and starting on Monster #2.