I bought nunchaku from these guys as well, but I got the chained version. I'm gonna be picking up the rope version soon too though. You guys should try e-mailing Rodney Uhler from Nine Circles' USA branch. They have a US site and store, but nunchaku aren't listed on the US site. However, they will gladly get a pair from the UK store if you don't wanna deal with customs and whatnot.
Actually, what's kinda cool is Rodney Uhler goes to a dojo within like half an hour's drive from my house about 3 or 4 times a year, so I don't have to worry about shipping at all.
I don't do freestyle with my nunchaku, but I can definitely say these are excellent. They're nice and heavy, and hard too, like stone. The wood they use is just great. Nine Circles does not disappoint.