Thanks. I was that way on the vocals myself, but Arch Enemy and a few of those bands kind of got me hooked just a little. Dio is still one of my favorites.
As I said, this was my first attempt at that type of vocal. Usually I'm more of a traditional hard rock/80s metal kind of singer. I was just kind of excited that I figured out how to do that type and thought I'd do it for this track. I'll most like do a whole bunch of stuff with that type of voice while it's new to me, and then just use it layered back to add texture to things as I get the technique down better.
I actually have double-tracked normal vocals panned left and right, but mixed so low that they aren't heard in the mix. It's just kind of a subliminal hint at what the melody should be.
And that wah sound is something I just stumbled on when I was experimenting with some routing. Basically it's a wah block tweaked the way I like it early in the chain. Between the drive and amp I run a parallel route to add in a formant filter that is fed by the drive, so it mixes in kind of nicely with the wah. Wah comes thru louder obviously, but with the formant filter being triggered by the pedal at the same time it adds just a touch more of a vocal quality when you mix them back together at the amp block.