Here's my full review of the 3Leaf Audio Doom 2. This is IMO the best way to get a usable and natural synth-bass sound. Being able to dial classic fuzz tones and harmonically rich tones makes this pedal very inspiring to use.

Credits:
Intro: Sarah Dion on drums
Boogie On Reggae Woman riff: Sarah Dion on drums
Last clip: Sarah Dion on drums and Alexandre Caron on guitar

00:00 Intro & Run through w/ Mike Lull PJ5
2:56 Fingerstyle w/ Fender Flea Jazz Bass Roadworn
4:44 Boogie On Reggae Woman w/ Fender Roadworn Precision Bass
7:05 Harmonic content of the fuzz
8:14 Doom w/ Walrus Audio ARP-87 Delay and Fathom Reverb
8:57 Full band demo / Ending