I had a fretless RA Mouse and was convinced I'd found the perfect short scale fretless, until I played @wrinkleygit's SS fretless built by our own @Jabba_the_gut. So convinced by that bass was I that I've sold the Rob Allen and if you pop over here...
..you can see the fretless (and fretted) basses he is working on for me. Never in life did I think I'd find a bass better than the RA but the Jabba built fretless beat it, only just, but it was discernibly better. Keep an eye on the thread and see what you think.