Bravo73 - I'm trying to find out to answer a question from a possible eBay buyer and I pessimistically thought it may take ages to get a response and might get better luck here. I have just emailed them now though.
The part number doesn't correspond to either of those you kindly listed ManOnTheSticks! The number is under the boom wind-screen yes? Mine is P/N 755-0019. Perhaps it is different cos it is a US purchase and not a UK one?
Hopefully US customer services are quick and I'll find out soon from the horses mouth.
Any other info greatly received.
Thanks guys.