I just ordered the Neck Illusions MultiScale Gloss Black Pearl block stickers.I recently got the gold in a 6'er... I love the color. Debating which Neck Illusions stickers to try out..
Regarding passive tone and a different preamp flavor - if you can live without a mid knob, the Nordstrand 2B preamp is a great choice. One of my NG3's has Super Fatty 2 pickups + Nordy 2B and I have that bass wired up vol-rotary-passive tone-bass-treble. No drilling, all 5 holes are used. You may need to enlarge the holes slightly but thats easy with a slow hand and a reamer.
I'm going to have to take some time to think about preamps and other controls. There are so many options: 6-way selector, DGTC vs Nordstrand 3B (need that mid!) vs the flat-response East UniPre (sweepable mids).