Reply to "With Gargraves flexible track how big a gap do you allow at a joint?"

The nubs on the pins are there for a reason, it keeps the pin from sliding all the way in one of the rails. If you grind them off how do you know the pin is all the way in both rails ? you may have 90 percent in one rail and the other just enough to line the rail but not enough for good electrical contact.  The slight bulge hurts nothing, I run some 2 rail equipment with never a problem.