I have the Octabvre mkiii, and I've tested it against OC2, OC5 and MXR BOD. They don't sound the same. Octabvre mkiii won't get you that classic OC2 hollow tone, even with the tone all the way off and Tim switch engaged (for more lows). Octabvre has more mids and is more pronounced in the mix, sounds fuller, which I love. But it won't do that OC2 thing (which admittedly has a very infectious sound). I'd say MXR got closer to that tone (but not quite there either), and OC5 is almost identical to OC2 in vintage mode. I haven't even noticed latency with OC5 and you get more gain on tap compared to OC2. Once you start upping the tone on Octabvre, it really gets closer to Mutron and even further away from OC2. The gain on tap is fantastic on Octabvre, and you can easily solo the sub with its separate control. I didn't like tracking on MXR, and found Octabvre and OC5 to be pretty close tracking wise, but Octabvre to me remains the best tracking analog octaver. I've tested those pedals with my passive P bass and my 3 band Stingray.