As suggested pay attention to the wing incidence. You may want to add in a little negative horizontal stab incidence as well. Mine is set at 0 and needed a large amount of down trim to get level flight. Makes it a little touchy, but it's a blast!!

Mine flies spectacular with a Magnum 52 4s. Perfect power, and as far as it being heavy, mine came in at 5lb 4oz, balanced and RTF.

Here's the maiden video. And the landings got better too.

[youtube]http://www.youtube.com/watch?v=DwgMURfrBAA&feature=channel[/youtube]