HABU STS by E-flite

[JohnA]

Did anyone have to add weight and if so by how much for the center of gravity to be correct on a HABU STS? It looks I will will have to add 21 grams (3 pieces) at the front of the hard plastic in front of the wheels. Using a 3s 4000 battery all the way forward.

[Oscar]

I flew with 3S 5000mah approx 350g
or 4S 3300mah approx 347g
both were 3/4 back without any additional weight