Cool- I just messed with it and found that as well! What other settings are you using?
I have that sound tuned pretty well at this point. I find that the noise/envelope/cutoff on this one is easier to get musical and less harsh for an initial attack to emulate kick than the C4. The glide, kind of goofy. Some notes seem to pitch drop by themselves, some notes don't. Really do have to learn to speak its' language. I've made three different presets of an 808 sub bass sound tuned in different ways. Mostly figuring out working the expression pedal into it. We do Essence by Wizkid/Tems and it rolls through a deeper sub octave and punchy higher octave on and off and the pedal is my key to it.
Working on tuning a saw to match sound for Love On Top, again the expression pedal is key because it switches filtering level in the chorus. Working on subtleties in how the envelope closes in the secondaries and the balance of the three voices.
Also just using the first and fourth presets with some tuning to personal tase. Of course all this is gonna change after I take it to first rehearsal, but I can do it on the pedals face now instead of digging out a macbook...
The secondary parameters and all that being active in live mode the last way they were set has thrown me a bit. I think I found the other day you can use envelope filtering and chorus/modulation through a clean dry bass signal? I have to double check (am in NYC and surrounding area right now away from my gear). Mostly just trying to figure out how to get it tracking nice. I do admit the C4 was a bit tighter, at least for me at the moment. I might try a Fump or the Nordymute.