@woodsyT posted:I have been using pin nails. smaller than finishing nails and they are nearly invisible on gargraves/ross ties. They are very small, 23ga. The track can be carefully pulled up if you change track plans and the pins pull out of the ties AND the table pretty easily.
That sounds like the nails I've been using. Since they're only about an inch long, and I was securing my tubular track through foam road bed into half inch extruded polystyrene over half-inch OSB, the nails really didn't penetrate to or into the OSB -- a gentle lifting is all that would be required to loosen them, but they did provide pretty good directional stability all by themselves. Of course, with the ballasting now complete, everything is definitely rock solid!