OK, I don't know much about these except this is a pro level piece of kit. The previous owner never got the hang of it and it's barely used. There is some rust on a couple of connectors as you'll see in the pics but I've left it as is. I'm assuming a new buyer will service it and lubricate. Please scrutinise the pics... P&P included for UK sales, extra charges by ebay if its an international sale...