I added 1" to my rudder as I had heard this was a problem w/ the S.E. I still could not maintain extended knife edge. I did not mess with the cg much, but I suspect that I could have moved the cg back a ways to help w/ KE and it still would have been fine for everyday flying. BTW, I put her to rest one day while hovering about 15' and my trusty Thunder Tiger .46 pro sputtered and died!!!!!! May she R.I.P.!!!!

regards,

Astrohog