They all use logo-less grey lead tapes. I think that it's 3M lead tape that they all use, but does anyone know for sure? Yes, even the Babolat guys use this kind of lead tape. I find this surprising, considering that Babolat makes a very good one and it has the Babolat logo and name. I mean, wouldn't Babolat want their guys to use their own lead tape? Apparently, the raquet customizers just work the grey stuff! Anyway, is it 3M?