One thing I do know is that the RMK Piezos really don't sound great with it. ...... I though the VB-99 has a setting specifically for that brand of pickup it simply doesn't capture much of the color.
I'm still questioning that aspect too. Both my bass have Graphtech pickups and I learned that initial the setup of your bass changes the whole tone a lot.
All the presets were made with a GK3B , that's for sure , so I was thinking of getting a GK3B for a few days and put it on my fretlless just to see if the Graphtech is close , tone wise.
Even if I I have graphtech on both instruments , the patches sounds different from one another. Woods , shape , etc....
My fretless setup now; piezo type "G" with lows +2 and highs at -5
My fretted setup ; piezo type "G" with lows +4 and highs -5
..... and yet he had a GK3B integrated into the bass--not piezos, which he certainly could have afforded. The integration looked interesting....
Probably these ;
http://www.sweetwater.com/store/detail/GKKitBG/
I'm interested in the Warmoth you designed. I like the VB-99 fine without the use of Magnetic pickups and I think sooner or later someone should start making dedicated V-basses. I was thinking of making a prototype. Did you learn anything from making yours.
Yeah!
-I should have put the angled GK plug a little farther from the bridge because of the guitar stands. I found one that is OK , but still....
-The graphtech kit has a "dark" switch , wich is an EQ bypass.
So it's either a smilly curved EQ sound or full mid "piezo" sound , I really wanted something in between. That's why I added an EMG EQ.
It was a bit of a pain to have the EQ effective in both the GK output and the 1/4" output. I had to use imagination.....

(I'll spare the details)
-The Warmoth neck is a little on the "big" side. I'm really at home with a Carvin neck if you've tried one. When I'll have time to spare ( something rare!) I'll sand it down a bit.
Great to find a community of people into this thing. It's a major breakthrough IMHO and I'm eager to share and hear what others are doing with it.
It would be nice to share patches and tips.
I asked the mod at the VG99 board if he could start a VB99 section for us bass players , lots of usefull info overthere ;
http://www.vguitarforums.com/smf/index.php
If you guys could ask them too , to open a VB99 section?