Mine balanced perfect with OS .46.
Great flier. My favorite by far. I used Futaba 3004 servos all around and no problems. Roll rate is amazing.
ABS cowling is crap. I spent a lot of time hiding the seams only to have a new crack appear after every flight. Get a fibreglass one and save a lot of grief.
Re-inforce the wheel pants with a piece of plywood inside where they bolt on to the gear. Other than that. Enjoy.
If you want to see mine its in the photo library.