First off, this is a great site, and I've been reading a lot here since I joined. Thanks for making a great resource. Now to the question: How do you prefer to deal with drop-d guitar parts on a bass with a low B? Do you detune your E like the guitar, play from the third fret on the B string, or tune the low string up to D and play whichever low string is needed for the song (having both a low D and an E string at your disposal)? I've though of all of these as ways of dealing with playing with a guitarist who alternates between standard and drop-D.