So I've been playing bass about 30 years now. I own about 35 OD/Dirt pedals and I've prob tried just about everything on the market at one point or another. Recently popped into a local music shop and they are now carrying Catalinbread and happened to have about 25 different pedals. I'd tried the SFT in the past and wasn't overly impressed. For reference some of my favorite pedals are the Way Huge Pork Loin, Darkglass B3K, SA Aftershock and the MXR-M80. I use primarily Fender Custom shop and American Professional series passive Jazz Basses and for amps I'm using Ashdown ABM 500 EVO II (UK) and Eden WT550 heads. My cabs are Ashdown ABM NEO 210's and Eden XST 210's. Now to the meat of the thread...I ended up trying out the Catalinbread Formula 55 and 5F6 pedals and left the store with both! The 55 I am using as a mild grind pedal. I have tweaked it to add some faint low grit and have gotten a nice tubey kind of compressed SVT type of sound out of it. The 5F6 I am running after it and have it dialed in as a mid gain grind. The 3 band preamp really allows for a wide range of useable tones from SUPER fat to transparent to boosted mids. The gain can really get pretty intense but I choose to use it as Grindy but not harsh. The 2 stacked sound awesome as well. At any rate, I couldn't find any clips and/ or posts about these used on bass so I wanted to post and let everyone know that they are IMO great for bass! Definitely worth trying them out to see if they fit your application...In my case they are awesome!