The last time that I went to guitar center to let off some steam after work (with tasteful, reserved musicality mind you) I noticed that I could get a clear note out of tapping anywhere on all of their new middle-low to middle-high calibre basses. On the bass I have right now, I can't get a good note from tapping. The sound is abrasive and "bzzztwangy" and exeplifies what I classify as "anti-harmonicism," or rather, the notes get higher as they approach the 12th fret (rather than get higher as they move away from it in classical string instruments, hence the name) when I tap them. I then looked at the frets on the intruments and noticed that they looked a bit different than the frets on my bass. And just so you know, my bass is a '91 custom made (Tim Landers) by through Peavey Telecaster 6 string, and its not what you would call a junker. My hypothesi as to why I cannot tap on my bass are that my frets pre-date a newer, more tapping friendly model, and that the nickel round-wound that I used to use and my stainless rounds that I use now are too abrasive. Can anyone point me in the right direction? Should I get my fretboard re-fretted or re-furbished in some way? For the record, when the strings are in tune, every note on the fretboard is in tune, so I don't believe the positioning of the frets is the problem, but it may be, I just don't know.