Listen to these guys, what they say is fact. I read all about this plane, trust me. Must have read 100+ posts and they all tell the same story: The CG can go as far back as about 4 3/4 inches. Mine is around 4-4.25. It flies like a dream. Where is your CG? Get the thing to balance and let us know where it is. If it's in the 5 inch or more then you might want to make adjustments (put battery on top of tank for example). You may be just fine as is. Let us know.

Joe