My only N gauge train runs great, but it was hard to reach the tracks for cleaning. I disassembled the track today and moved it to a better location. Then I discovered that one of the N gauge straight tracks I bought was missing a connecting pin, so I can't turn the circle into an oval. And of course I had to re-arrange a whole lot of stuff to get it to fit.
PS. Want a real challenge? Assemble N gauge tracks smoothly.