For those considering a modular system, I have a Three10 and One10W (for WIDE). The Three10 footprint being pretty small means it can do pretty much any gig space-wise (it's barely bigger than my old Super Compact), and usually volume-wise as well. If it's a bigger gig, or I feel like it, I can add the One10W on top. Or if its a very cramped stage (not so common for me these days) I can use the One10W on its own.
Sure it wouldn't work for everyone, but it covers all basses for me. And they are colour coordinated.