Not sure, but this could go in the Hardware forums, but it addresses a few threads I've seen over the years regarding basses tuned BEAD.
So, MODS move it if you feel (even though it may get more traction/views in basses).
Anyway, it's no secret that I've went back to playing a 4 string mainly for the last few years, and both my main 4's have HipShot D-Tuners with the Double Stop Lever, which give two dropped positions.
Now, a lot have seen a few posts from YouTube where I've used the lever with my E down to B.
On my Sadowsky Will Lee I've been using D'Addario XL's .100/.80/.65/.45.
On my PRS 4 I've been using Boomer's .105/.85/.65/.45. (I may change the WL to this gauge as well).
There are numerous questioned asked to me all the time whether it holds the tuning, how floppy is the dropped E to B, fingering/ease of playing etc....I'll try and address these in this post as best I can.
In this first clip it's a good example how the drop to low B on the E string sounds ALONE. (forward to the 6:00 min mark). http://www.youtube.com/watch?v=1Bgs76sx8ZE
(there is another video where I demo it on my PRS right after I got my first one, but I only had it tuned to low C).
Now, you listen to that clip and think, "man, that doesn't sound very good at really. Kinda floppy". And yeah, I agree, it does- by itself.
Here is the same bass, same rig but in a live context: http://www.youtube.com/watch?v=oNW3KkCrYTA
(forward to 3:30 to here the E dropped to B)
Here is my PRS with my E dropped to B for pretty much the whole song: http://www.youtube.com/watch?v=Vc8eWv2c1iw
In the first clip (with the WL) I was asked if I used a 5 string by a few people. They were kinda shocked when I told them no.
Now, does it sound as good as a 5? To be honest IMO, yeah, better than some 5's I've heard. You can be the judge by the clips yourself.
The DoubleStop as shown in the first live clip is pretty much dead nuts in tune dropped to low B from E. I just flipped the lever all the way down on the break in the tune prior to the outro chorus. Didn't adjust the tuning or anything.
I the second live clip, that was the first tune of the night, so I was tuned up in all positions perfectly. But to be completely honest, I don't think I check my tuning more than every few songs to begin with.
Ease of play with it dropped down to B.....LOL!!! It's NOT!!!!
I can play in DADG (E dropped to low D) as good as I can in normal EADG. In fact my fretless 4 which doesn't have a HipShot at all, is left in DADG all the time.
You;re not going to play any blistering lines tuned like this. But if you know the neck pretty good, and can flip you mind around, you can play pretty good. I go from normal E to B to D and back at times all in the same tune. But I'm really used to doing it at this point.
Like I mentioned in the very first link, you can't play as you normally would on a B with the E dropped that far down. You have to lighten you touch a bit to keep it from getting too floppy under you fingers (because of the low tension).
It also holds tuning between the settings very well. Once you get it adjusted and set up (HipShot has videos how to get a D-Tuner set on YouTube) it stay pretty good.
You really only have to check your E every few tunes if you use it a lot. Even then, it's only a little out and when set up properly, you may not even notice the slight bit it's out.
Setting it up is kind of a pain and not something that can be done really easy on the gig for the first position as there is a small allen set screw (in the lever itself) that needs to be adjusted with an allen wrench. And don't misplace it or forget it. Because you can't adjust the set screw with you fingers. I use a piece of gaff tape and just keep the allen wrench tapped to the back of my headstock.
I do recommend getting your bass set up and a good nut installed if you just have a plastic one. And keep it lubed with a touch of graphite (pencil lead works fine).
I tried Elixer strings with it for a bit, and with their coating it was great for sliding over the nut and holding tuning. I just didn't like the feel a whole lot of them under my right hand.
Well, I hope this helps and maybe demo's the HipShot with the Double Stop Lever a bit. And if I can answer any questions, post them up!