I thought about how the older fender basses had the mutes, so I grabbed some cotton balls and put them under the first four strings of my Conklin DB7, since they seem to ring the most, and it works pretty good, of course there is the trade off of not get the full sustain, but I figure until my muting techiques get better with a seven string, I would give it a try, I had to try diff size balls until I got the size that gave me the sound I like, I found putting full cotton balls under the strings mutes the sound to a thump, which is kool, if you like that sort of thing, oh well
