I agree. Have had two SK 50 engines, a couple SK 90 engines and a couple JBA 56 engines and they have been real nice performers. Did have a crank pin break on one, but customer service took care of the repair and that engine was a real gem after that as well. I had one of those JBA 56 on a 40 size NJ One profile I built from AMA plans and it would pull that airplane out of site like a rocket. Lots of fun and a lot of dependable power for the money.