I've been looking through the search results on
string guages and detuning and haven't yet found a 'definitive' thread on what
guage strings to use for what tuning. I started out playing in E using 9s, then went to Eb. I liked the looser feel of the strings. Then I went down to D and they felt like rubber bands. So I went up to 10s, and after a while that felt slightly too loose too-- I couldn't get my bends and vibrato to be as good as with regular tuning and 9s. So I went to 11s but then it felt too stiff, so I tuned down another half step to C#. Now it feels too loose again but I'm too cheap to buy newer string until these wear out.
Then I started singing and found that anything near standard tuning just seems to kill my voice after a few songs. If I can even hit the notes...
So I also have an RG550 that I then tuned to B and threw 13s on. Too stiff. Buzzes all over the place. It has a hard tail btw.
So using standard tuning with 9s on a 25.5" scale guitar as a base-line, here is my summary:
E: 9s
Slightly loose feeling:
Eb: 9s
D: 10s
C#: 11s
Too stiff:
B: 13s
The bass player has been unable to keep up with the changing tunings (whatever guage he has is just barely playable at C#).
Anyone care to add more observations, etc?