why not just plug em with the toothpics ? regardless of what you use to plug it with, you're gonna see it. & besides, it's a freakin sx,, who cares.
i have yet to find the totally anal bass player that as they were totally droolin over my squire, ( ya, i said it,,, now quit laughing

),
i have yet to hear a single ewww,, or gasp,,, or egad, are those toothipcs you cramed in those holes.
