Hi Mark,
Since nobody has responded I'll give you my 2 cents worth. First, I have never owned that particular pattern ship; so advice is based on other experience.
10lbs is a very reasonable weight for that airplane, especially with a gas engine installed. Typically, the C/G is right around the wing tube adjusted for flight performance and personal preference. Are the servos in the tail? It is better to add some weight to the nose for the sake of caution, for the first flights, then remove as necessary. As for control throws, when in doubt use your dual rates with about +/- 3/8" for the elevator and ailerons on high rate and maybe 2/3s of that for low rates.
Good luck!
-Will