Hey! I've been able to mess with my Mk3.33 pretty thoroughly in live settings and by myself. The pedal is awesome, it does exactly what Spencer says it should do, but I've been having trouble dialing in a sound I like. I've used an OC2 and an MXR Vintage Bass Octave, which are both great, but I've been looking forward to having an octave with a sub toggle and a tone that pokes through a little more. With the overload switch on and tone dimed on the mk3.33, it reminds me of an octave with a low gain fuzz or drive in front of it, which is really cool, but I already have my doom2 for that. With the overload switch off, the sub is pretty dark. I guess the sound I'm looking for is that hollow, synthy tone I've heard on previous octabvres. The Mk3.33 is an absolute beast, but maybe a Mk3 or previous iterations are more suited for what I'm looking for?