I am a MASSIVE fan of my prototype Wilson Freaker wah! it looks like he’s on Ver. 2 now, so I don’t know what differences there are between mine and the current production, but it’s essentially a clone of the ParaPedal. It’s less a wah and more of a ridiculously resonant, synthy low pass filter.
The ParaPedal was allegedly used by both Toni and Geezer on “Black Sabbath” but mine sounds much… thicker… I dunno, like theres a much sharper, narrower Q on the wah used on those tracks.
Mine sounds killer post fuzz on both guitar and bass, but (being a low pass instead of a band pass) it cuts volume pretty significantly when it’s all the way heel back. This might be rectified by the current version. He posts here a bit. Hopefully, he can chime in if you’re interested!
Another rabbit hole to peer down is Snarling Dogs. I love my Mold Spore, but admittedly it’s that hateful ring mod that keeps my interest the most. My buddy has the Bootsy’s signature though, and it FWONKs like nothing else on the planet!
I’ll also throw in for the Weeping Demon, too! It’s got loads of customization options to tailor to your specific sound, and it gets pretty thick.
However, I personally couldn’t get on with it because it sounds more like a WOW than a WAH to my ears, but that was before I’d acquired my current amp/fuzz setup.
I imagine I’d love it for some wailing squalls of feedback alá Jesus & Mary Chain.

Imagine how badass a doomed out “Alvin & the Chipmunks on 16 Speed” version of J&MC would be!
