I'll try to make this short.
So im looking to buy a wah pedal for stuff that can pull of some wah like what kirk hammett has so pretty much metal stuff.

Price around 150$
Who Said Anything About A Signature ? ಠ_ಠ
I got the Vox Wah pedal. It would be pretty good for Metallica with lots of distortion and if you don't sweep through the whole range of sounds
Epiphone G-400 Ebony
Line-6 UberMetal, EchoPark
Boss RC-2 Loop Station
Traynor YCV50Blue, Bass Mate 25, Guitar Mate 15
Don't get the vox wah.

Rather, get the Crybaby 535Q.
Co-Founder of the Orange Revolution Club

-Esp/Ltd Ec-1000 w/ BKP Mules
-2-channel Titan
-Oversized Bogner 2x12 Cabinet
-Fulltone OCD
-RMC Picture Wah
-T.C. Electronic Nova Delay
-Larrivee D-03R
1+ to the ibanez. i would recommend the vox if you were playing classic rock, but your not