British Customs has one.We had a member here some time back that bought one but I don't recall what his opinion of it was.Maybe he'll see this and speak up.
Good question about Mustang.Maybe if we all sent them an e-mail telling them that the seats on our bikes are the worst feature perhaps they'd take notice.
Then there's always the custom seat route but that can be a crap shoot.Some guys really don't know what they're doing and it can be a real pain in the.... well you know. Good Luck
