Snax, you have a really good voice. and a nice tone, reminds me a little of michael kiske. you are definitely in the "he´s a natural" camp. liked the metal trax too.
out of curiosity when your singing in the head voice area A,B,C above middle C what sort of sensations do you have in the throat etc.
when you go up in your range you seem very good at dumping the vocal weight. i thought this may be because you had a higher voice to begin with but when i heard you speak in one of your vids you dont.
when doing those vocal slides like in one of the vids on the AH try turning the AH into more a UH as in the word "WORD" as you go up. see how that feels.