Lay it straight!

[Steamtrains]

Hi...I draw the centerline with a yard long metal straightedge, then lay the cork centerline over that, and lay the track over the cork center line. Just to make sure, I lay the straightedge on the side of a rail to double check. Make sure you span the railjoint over with the straightedge, as that's where kinks are most likely to develop.

Good luck..!!