well i have been looking for the octaver for my board for a couple of years. I used to use the markbass supersynth octave part (which worked reasonably well but was a cumbersome solution as i did not use the synth part), now im using a old BOSS OC2 which is kinda ok, but tracking is glitchy and i lack the octave up. I was looking at getting a POG (perhaps a nano pog) but when i checked for more affordable alternatives the Mooer tender has turned up. I will likely order one this week, and will let you guys know what i think of it. From the guitar videos i have seen this thing works quite well, so ill be interrested in experiencing it first hand in the bass range.