like it? no, i loved it-- thank you willem for posting this. what was the r.p.m. at initial idle? it was ticking over so slowly you can hear individual cylinders fire-- what a fine piece of machinery for 1918.
what was your coolant temp when you started cracking throttle open? outside air temp [OAT]?
i noticed at higher r.p.m. the propwash caused the fabric to flex on the bottom of the top wing almost out to the N struts-- interesting.
i also noticed the engine stuttered a beat or two when you opened the throttle. i'm guessing there is no accelerator pump on the carb; disadvantage in combat when you need immediate power response to slamming the throttle open. completely solved a couple of decades later by fuel-injecting the DB601.
octane rating of your fuel?
i now appreciate how the DVII was reputed to be able to hang on the prop in a dogfight.
okay, what's your guess about when someone will start recreating the MercD-III?

thanks again willem, you are a prince of the realm. more please.