The couple of breeders I talked with at shows in the UK many years ago said they do have a pretty calm and steady personality. About a year ago we were in Lowes with the dogs, and a guy came up to us and asked if our dogs were from the UK. I told him yes, and he said he thought so from how they looked. Turns out he's a vet in a town in southern Delaware. He said he had imported two Clumbers from the UK and has been breeding them for a long time. I wish I had gotten his info. He's the only person I've met or seen here in the US who has Clumbers.