Starcop,,,, did you mean the GP- Mustang Kit or did you really mean the Hangar 9? I will be starting the GP P-51 really soon id love to go with a Saito but I was thinking the .82 and was concerned about being nose heavy. If this plane comes out nose heavy to begin with then I might opt for a lighter two stroke. Those are awesome pics of the yellow tailed P-51. Anyways, thanks for any help with this engine and balance issue.