yeah, i have a 575, which is a 72cc also, great saw. i had a bad experience with the 371, which we bought as a crew saw, when it first came out about 15 years ago, quickly toasted it's top end. i also didn't like the way it revved so high, over 13.5k, and had a really narrow power band, decided to stick with 272's. anyway, i know there's a 372 out there somewhere that has my name engraved on it's crankshaft. i'm sold on redmax/husqvarna stratified charge technology, (but wouldn't touch anything with auto tuning.)