Nice job, but I really paid attention to the "noise". It does not appear to be a drum noise. The clacking sounds correlate with knee lever movement and not any type of beat. Still, very nice.
Herby, I'm glad you're out of the dark ages now. I'm kind of at a loss for words after getting a compliment from you. You have been my hero and inspiration since the 70's. Thank you so much for the kind words. You are my hero and probably always will be.