It all depends on what you class as "offshore" sailing. I was berthed next to one in Fecamp a few years back. It's owner was returning to the Medway after a trip to the channel islands. I'd think twice about doing the AZAB in one, but then Shane Acton went round the world in an 18' Caprice. I suppose if you're an ex RM Commando, you might think it unreservedly offshore capable, too.