Premature cylinder problems are epidemic. Hardly a day goes by that I don't hear or read about an aircraft owner having to pull one or several cylinders at annual due to poor compression with leakage past the exhaust valve. More often than not, the afflicted airplane is powered by a fuel-injected TCM engine. The cause of this epidemic seems to be the confluence of several contributing factors.
This is a companion discussion topic for the original entry at https://www.avweb.com/ownership/the-savvy-aviator-65-whats-your-fuel-flow-at-takeoff