This little anecdote is an open confession of a prior attitude I used to have on a similar subject. it dosen't infer that Joe is in anyway similiar to me, but, as a bassist it marked an important stage in my development. Thus I feel it may be of value to my bass brethern of all walks of life.
I recall back in my youth (1974) when I first heard some guy slapping on the bass. I was astounded and had no idea what he was doing. I mean this guy wasen't even REAL to me. You know? Like some kind of alien.
Me and another bass player were huddled in a corner being thoroughly intimidated by this "monster" It was obvious to US that we were completely overwhelmed and couldn't even come close to competing with him for gigs, or attention, etc. This guy was flailing away with a crowd of people around him, exhibiting very formidibale technical expertise.
Me and this other bassist at the jam session were utterly impressed and horrified. We both basically started "agreeing" with each other about how "wrong" he was for being so good, and how "right" we were for not knowing slap. That made us feel more comfortable since we were able to become more "seperate" from him and what he was doing. (in other words, by keeping what he was doing in the realm of "unreal" thus not valid, we were more comfortable.
I concluded that being critical of things that others do or use that we ourselves have failed to do ourselves is a way of making ourselves "right" and give us a way to move forward from there. Its a temporary solution.
Unfortunately it leaves us "seperated" and individuated from others in order to "be right" and explains away how and why we failed somehow in our own estimation.
Fortunately I grew up and matured emontionally and intellectually from there and now I can slap too without feeling like I HAVE TO.
I think if your gonna slap, then get the BEST slap tone possible, if your gonna rock and grind, by all means turn the tweeter off. If you have no use for funk, fusion, tapping, etc, then by all means throw your tweeters in the trash or donate them to the "needy tweeter support group" of your choice.
Somewhere, in the world right now......someone needs a tweeter. Don't shun him, for he knows not the error of his ways.