Dauntae
After putting the OS 40 in your Waco 30 how did the CG come out. I'm deciding between the saito or the OS 40. The OS is a little heavier then the saito. If I have to add weight to the nose of a plane to get right CG I usually gowith a larger battery or go to a larger engine that will fit. Has anyone seen the saito and OS side by side for sz difference.