I had forgotten about that little EvH piccolo bass too. Cool thing there. I still can't remember why I was interested in the shorter-than-short-scale. Just remember that I was. At one point I simply wasn't able to stand up and play bass anymore so that may have been the reasoning. Eventually I bought an Ibanez 'parlor bass' to play during recovery/rehab from surgery, and that led to eventually modifying a Martin Dreadnought cutaway guitar to a bass. Basically a 25-1/2" scale. It works, but you really have to rethink everything on string gauges and lengths, action.
I'd love to try a 28" scale bass guitar at standard pitch.