I am kind of interested in this now, its probably more than I wanted to spend on a pedal but I do have a specific issue at the moment - I have joined a metal group and where the main group can all be played with a standard tuned 5 string, quite a few of the metal ones require a variety of drop tunes, so I have to use more than one bass (because it is a pain constantly tuning your E on a 5 string!). However, then there are a few songs that are other wierd tunings like drop B. Most you can just rework out for a 5 string, but some would be easier of I could use a drop D b string tuned down to B - so if you dropped a low D down 3 semitones to a B, does it sound reasonably natural, or at least workable?
I am currently just using my Boss ME90B but the drop tuning on that is pretty poor.
Sorry, I had missed that, I certainly can if the OP doesn't want to / cant.