A couple of hundred hours in a Canso with a couple of R 2600’s and about 800 in F27’s and I can’t hear enough to know weather it sounds good or not! They both did then, much better than a C172, or PA 23, or any of about 50 different light singles or twins that preceded them. Couldn’t hear the jets much though. PW 985 in the Winjeel was not bad either