I got two off eBay. Both with 110VAC chargers and English manuals, so I’m guessing they were Canadian releases. ??
The first flew but was center balanced and was real touchy, just about anything would cause it to crash, which I did from about 80ft, breaking the fuse in half, and have now done some major surgery to lighten it overall and change the CG, plus I added lights.
The second flew great right out of the box and I’m not going to change anything.
I did notice and fixed a possible problem with the first one’s wings, the outer half of the wing past the fans were stressed into a slight downward curve by the clear tape, once I pealed it up and flattened the wing I reapplied it holding the wing straight like the other plane is and it seamed to help. Taking readings from the plane that flew good from the start the CG seams to be around 2&3/8” to 2&1/2” measured from the leading edge @ a 1/2" out from the fuselage line.

rocketpunch,
I’d check to see if either or both wings have warped. Being foam if it was stored leaning on a wing, or with something on the wing, that will warp it.
Check the battery, if it’s inserted in such a way as to change the CG. Being such a small plane and overweight with a short tail, it’s real touchy to small weight changes.
Also check to make sure there’s nothing, (grass, hair, ect…), wrapped around the fan blades or motor shaft, I’ve had that problem and it’s a pain to get out.
Let me know what you find.
Ric