I took my Grinder with the electric motor out yesterday after changeing the elevater throw to one to one ratio. The grinder will not stunt good at any other setting than one to one. It had a terrible stall with a two to one ratio and would not turn correctly on the square or triangle. After the ratio change it fleww like my 2005 Grinder. Times were 51-2 second laps on 63 foot lines and RPM is right at 9000 RPM. for 5 min and 45 minet flight I felt very comfotable flying it and it was like having and old freind show up unannounced. So now it is practice practice and practice. Now that I am almost 82 thats a real chore as most of you stunt pilots will find out someday. By the way Happy Birthday to Shultzie. After I invented dirt Shutzie figured out what to do with it.
Way to go Leo. Gives me a goal to try an attain. Glad to hear the Grinder is working for you. Was looking at the plans again the other day and checking the laser cutter site in Texas.