I've heard of people doing it this way, and getting great results with
an E/V RE20, too. I've always wanted to hear how that sounded... Might
be worth looking into! Good luck.

Pete Scalia
Smiling Iguana Productions

Try starting here.. Place the diaphram a couple inches above the
bridge and just out in front of the bridge where it will not be
bumped. I've used large diaphram condensors with best results (U87).
You should try an AKG D112 placed the same way if you are doing a more
traditional sounding track.
You may find very little or no e.q. needed. I compress using a 2 to 1
ratio, bumping off perhaps a couple db as we're recording.
If you need more of the "slap" use an AKG 451 or similar pointing
towards the end of the fingerboard and blend some of this in. I
personally find the second mic unnecessary but I prefer a smooth, rich,
even sounding stand-up.
Hope this gets you on the way!
Gary Gordon