Hi Dave, glad all went well with test flight.I also test flew my Flash today with the C/G set at factory recommed place it was tail heavy to the point that i was only just able to land it.I have a jet central Falcon in it[ 22lbs thrust] set as far forward as possable with two 2500 li-polys in battery bays with a 4000mah above the nose leg.The Falcon only weighs a bit more than a P80 so how did you balance yours with a 120 and where is your C/G?? Once i had added 5 ozes lead in the nose it was GREAT and flew very well i am delighted with the performance but why can,t the factory get the C/G right i could have damaged it or even worse regards Keith Whiddett