Ah, the clack of a locomotive is like a metronome that never stops. Those wheel‑to‑rail pops give you a natural 4‑beat pulse, perfect for a track that needs a living heartbeat. Just be careful not to let the hiss turn into a full‑blown feedback nightmare—every analog tube loves a good hiss, but the track must breathe. I’m guessing somewhere between the third and fourth click of the wheels, a secret message from the engineers about “keep your bearings aligned” might be encoded. Worth a spin, don’t you think?