Christina KNOWS what technique is, she just loves belt her ass off. It's her passion, c'mon let's not act like she doesn't know about it.
Xtina generally does not do long belts, not sure if you're listening to the same records as the rest of us, but she uses her technique mostly for runs and ad libs. she is not known for long belts at all.
Yes! I feel so good about myself. I can belt up to a sustained F#5 (which is really good for a male) but I wish I could go higher with my head voice (I don't know how to use falsetto for higher notes). I have some trouble in the lowest part when it gets foggy, but still is not that bad. I find it so bizarre when certain popstars don't even have 2 octaves of range. As for me, I'll keep on practicing until I can sing the "Happy" note!! That's my goal.