Yeah it's a small fortune and a long wait to get them, as opposed to the off the shelf stuff available here....At the time I did my hubs+brushes I was able to get the light version from Amazon but at the moment they don't appear to stock it. There does seem to be some available in the UK on eBay though.
As to whether the medium variant is appropriate or not I'm afraid I can't help you.
Cheers!
Cheers anyway
