It's the Aluminum C you got, right Ubi? (you said "G" in your first sentence, I wanted to be sure...)
I just ordered one last night (Aluminum C), and should hopefully have it by Wednesday for a recording session on Thursday.
Compared to the hardwood C, is the tone significantly brighter?
Do you like it better, or is it just different than the wood?
(Karl said on the phone he really enjoys playing the aluminum, so if the big man likes 'em I'm sure they are great) 
I got them both. In the first sentence I was just citing my comments about the G, which also apply to the C. I don't think the tone is significantly brighter, just a tad different, but I do like the weight of it, and the tapered mouthpiece. Very cool.
Ubizmo