I had a brief look at one of these bags a while back, though to be honest I was paying more attention to the very nice (J-style) Sadowsky bass within

From memory, it fit pretty snugly. Given that Sadowsky specialise somewhat in basses of this shape, it's probably designed with them in mind.
I'm very interested in this bag as well, as I'm in the market for a gig bag at the moment.