I have lleyns, granted the odd one or two are flighty, but the rest all come to the bucket, in fact they badger me for food when they hear a rustle of a feed bag or bucket. It really depends on what breeder you buy them from. Rare breeds granted are not for everyone, but the reasons why they're rare is because they're not what the market wants, in other words they're not fast growers and tend to be on the flighty side, but hey so are welsh sheep. Its really what will suit your situation and also what you really like. I hope you can sell the herdwicks and keep us updated?