Great Planes .40 Extra 300 ARF with approximately 10 flights on it.

I've had it balanced a bit nose heavy for the test and triming flights-

Going verticle it yaws left every time regardless of wind direction... I'm thinking it needs right thrust added. They say it's built into the firewall but I don't think it is.

Any additional suggestions before I get into messing with it? It's a real pain because it effects all manuvers adversly, loops, hammer heads, and of course anything verticle although it's not as noticeable coming down verticle at idle.... That's what's making me suspect torque and p factor....

270win