02-11-2009, 10:49 AM
I've found that using a straightedge is a good start (even a string line will work), but the final adjustments are best done "by eye". If you're using spikes, don't drive them home until you've eyeballed the track and corrected any misalignments, and, for the latex caulk method, make the adjustments as required, then, if necessary, use pins or nails to hold the track in position until the caulk sets.
Wayne
Wayne