MY PERSONAL OPINION is that dropped d tuning is for guitarists,
not bassists. Guitarists often begin to insist that
you use it when they are relying on your visual cues to play.
I use a hipshot extender key on my geddy lee 4 and nothing
on my 5. It will play in any key just fine.
People who detune often end up substituting heavier guage
strings to compensate for the lack of string tension and
the problems that entails, intonation, string slap, fret buzz
and whatnot.
Ok, tune your G down to Eb. Oops, a bit clanky and floppy so
you go with a heavier string. a .065 sounds better than the
.045. Then you go ahead and change the rest. So what you
did was change your 4 to a B-E-A-D tuning. Actually, raised
one half step. So did you detune, or not? There is really
no beating the physics involved in bass designs.
For drop D, just use a 5 set up straight or use a hipshot detuner.
You can catch D through A on the D/E string tuned
in a fifth and use all the other tuned in fourths.
That should mightily confuse your guitarist.
