American Jesus- That's ok. I just prefer simplicity. When my friends hand me a guitar with 43 knobs, and are like "Dude, this is so awesome", it makes me think if I should be playing guitar, or just twisting the knobs. If that made any sense, thanks for voicing your opinion.
Jivin- The pickup is completely sealed inside, but if I desperatly needed to, I could access it by cutting some wood, and screwing the section back on. One thing you're going to have to consider if you're thinking of using this design, is the pickup's distance from the strings. Most pickups are around 1/8" from the strings, and on mine, they're about 1/4". The strings are about 1/8" from the wood, and the pickup is about 3/32" down into the wood.
I first played The Nebula today in the band, and the sound absolutely CUTS through the mix. The lead tone is incredible, and I thought the rhythm guitar chords were lacking until I tried some Iron Maiden, and it completely blew me away! I love this thing!