Another way of keeping the track to the correct curve is using the sweepsticks sold by Fast Tracks!
http://www.handlaidtrack.com/Fast-Tracks-SweepSticks-Laser-Cut-Track-Form-for-HO-s/2208.htm
Happy railroading!
http://www.handlaidtrack.com/Fast-Tracks-SweepSticks-Laser-Cut-Track-Form-for-HO-s/2208.htm
Happy railroading!