I think this is why people are getting confused.
The terms "(de)tuned to C#" and "drop C# tuning" do not yield the same results.
What you describe above is a guitar linearly detuned to C# (C# being the lowest note of the E string in this case)
"Drop C#" would imply that the guitar is tuned to Eb, with the bottom string detuned a further whole step, down to C#.
In my experience with Senor Loomis, he doesn't ever use this "dropped tuning" technique. A lot of guitarists don't, simply because it means that you have to modify the fingering of all chords played on the bottom three strings. A bar chord becomes a chord you can now play with one finger. While this is less complicated for, and preferred by, some guitarists, it is also not something that a lot of guitarists like to do. I think Jeff falls into the latter category. I don't think I've ever seen him use this type of tuning technique at all.
That being said, he might have used something like that on the albums Nevermore have done with Andy. I'll give him a shout today and ask him.
Yes, but he was asking if Db Ab Db Gb Bb Eb was the same as drop C#, which it is. You're just speaking in sharps instead of flats. If he de-tuned a half step instead of dropped, it would be Eb Ab Db Gb Bb Eb, which is the same as D# G# C# F# A# D#.
DADGBE is drop D tuning, Burti, like you said, and drop C tuning would be CGCFAD. If you raise it a half step, it would be drop C#. If you lowered it a half step, it would be drop B tuning, which is B Gb B E Ab Db
Standard tuning: EADGBE...drop that to drop D tuning = DADGBE
Standard tuning DETUNED one half step, whole step, two whole steps, 2.5 steps, etc. (not dropped) would be:
One half step: Eb Ab Db Gb Bb Eb (this is very common in Nevermore tuning)
One step: D G C F A D
One and a half steps, which I'll refer to as flats instead of sharps:
Db Gb B E Ab Db (My Dying Bride play in this tuning)
Two steps down (In Flames) C F Bb Eb G C
2.5 steps down (equivalent of 7 string): B E A D Gb B
I hope this clears up any confusion.
