What recommended prop should I run on the UCAN DO .60 with a Super Tigre .75? I just installed this engine yesterday and took it out for some flights with a 12x7. I don't have a lot of experiance in this engine size range nor with 3d type stuff so please excuse the ignorance. But The aircraft flies very well, but falls out of the hover. I'm thinking prop is an issue as the engine should be able to do it. I may be underpowered? I had a 91 fx with 14 by 6 but the 91 fx never ran correctly mounted upside down so I off loaded it to a right side up application.