You should be fine, mine is about 9~10 degrees. When I moved the pushrods in from the outer holes of the servo arms (I went to hole number 3 from the outside) I did not touch the pushrod lengths, nor did I change transmitter trims and it flies trimmed with all trims in the center.

So, have you flown it yet?...Run it up a little?...Spin the blades a couple of times?

Amir