I tried to maiden today twice and both unsuccessful. !st was with the CG at 107mm per manula. Threw it and it flipped over and hit the ground, the CG was way to aft. Then repaired it and added .5 ounce to nose then tried again, not as bad but still too aft CG. Needed almost full down to hold it level, need to repair again!
The specified CG as way off, not even in the ballpark.