My OS V-spec will be over 7 gallons after tomorrows race and is still running strong. It may have lots of life left or may be on borrowed time and I don't want to wait til it's dead before getting a replacement. Even though it's been the best motor I've ever owned, I'm going to replace it with a werks B5. I ordered it today from A-main and am anxiously awaiting its arrival. I'm able to get SH engines and Novarossi's at near cost, but a friend suggested the B5 and after reading this thread (each and every dang post) I'm sold. Thanks to all who have made this a friendly and informative thread.