Thanks, Ed, Ray and Jags--
Ed, not suprisingly, I was struggling with these issues a bit. I tracked the guitar first, and I was liking the detail I was getting closer (about 6 inches away) to the mic (AT4047), but it was getting muddy and distorting, so I used the -10db switch (as well as the 80 hz roll-off) and liked the sound. When tracking the vocal (same mic) I was back about 12 inches (and using a screen) (without the -10 switch). As you obviously could tell, I used some reverb on the vocal (with about 75 ms pre-delay) but none on the guitar.
This all becomes a good example of liking the sound on each track but not paying enough attention to how they sound together. I'm going to try your suggestion of adding a little reverb to the guitar. I suppose, implicit in your comment, is that had I backed off some with the guitar I would have had some more natural room reverb, which may have made adding it in the mix unnecessary, yes?
BTW, I'm happy it made you feel that way; that's part of the point...