I'd be really interested to know what it sounds like, a coworker of mine uses a Cleveland style tattoo machine (coil machine with no rear spring, a - bar running the whole length to a pivot point, and a rubber band wrapped around it to the bottom of the frame on the back for tension) and it sounds a little gravelly but hits nice and hard and at a slow consistent rate. I wonder if Dan ' s gets a nicely tuned coil hum or more of that cluttered sound to it as it has a coiled spring for rear tension. Looks beautiful though.