So I was able to recruit my wife to help me put it in a balancing jig.
Good news: results are aligned with the results using the digital scale.
Bad news: need to figure out how to secure batteries in the needed location so its not too hard to recharge them, plus securing the 1.8 Lbs / 0.8 Kg in the vector thrust area
Appreciate everyone inputs.
thats 1.8Lbs in the tail area
About 15mm in front of the main tube