I bought the tort guard after owning it for a year or so. The shop I worked for at the time ordered the pick guard for me from Chandler.
The SD Antiquities and new bridge made all the difference. It's the best playing jazz bass I've ever played. I'm kinda anal about my neck relief and action, and measure my action regularly. I like a bit more relief than spec, and keep the neck there all year long...... I think this has kept the neck from warping...... today, I can get the action extremely low with no buzz. When I bought it I was on a vintage Jazz hunt that landed several "dogs"..... This bass, especially when I made the mods, cured the vintage gas. I've toyed with the idea of throwing in a preamp, but the TBX is pretty cool, and it definitely sounds vintage when you turn down below the detent on the tone knob.
I guess I've always viewed this bass, as well as all the AmStd's, as a great platform for modding into something even better. Again, the fit and finish of this bass is impeccable. The fret work is beautiful..... every bit as nice as my '08 MIA P. I threw on a bent plate fender bridge on it a few weeks back (replacing a BAII that has been on there since '94 or so), and I swear the bass is a good half pound lighter. I need to borrow a scale from work for the weekend and get a good weight on it, but I'm guessing it's about 9.25 lbs. And the extended upper horn (the boner) makes the weight spread out across more of your shoulder and upper back..... on the strap this thing feels like a 8.5 pounder.
Other mods that I've made include vintage style knobs (hated the numbered F knobs), a hipshot detuner and a bone nut. I've kept all of the original parts in case I ever decide to sell it...... but even today, other J's don't seem to measure up for me, so I don't see myself selling it anytime soon.