Gary, Thanks for the info. I use Powermaster 15% and it's 18% oil (synthetic,castor) I had some store credit at the LHS and among other things I got some castor. I haven't used it yet.
You must be amazingly talented...... You can fly inverted 3ft. off the runway and take a picture at the same time....[X(][X(]...[>:] Isn't that a daisy.....[&o]