Not a biggie. What you've effectively done is build in more decalage and more downthrust. If you work the balance point back for better stunting then you'll need some down trim on the elevators for sure. Not a lot but it'll be noticable. And the tendency for the nose to come up will be damped by the extra downthrust in relation to the new wing angle. But in the end what you've done is no worse than many other Astro Hog builders have probably done and they all flew fine.