I've only been playing a few months, but had never found a 5 that fit my hands (I have short fingers). After an afternoon at Bass Central playing pretty much one of everything on the wall, I got brave enough to try the Dingwall ABZ (4 string). Loved the sound, the feel, the near-immediate comfort on the fretboard. So, I said WTH, let's try that 5, too. The 5 I started with was a Leland Sklar model and played like a dream. It's the only 5 that I've been able to get my hands to cooperate with, so I asked to play the ABZ in a 5 also and walked out the door with her (and a Lakland, but that's another story).
In a nutshell - They're sweet. And if you're in Central Florida and want to try them, Bass Central has a nice selection.