Thank you for all the advice and responses, seems that Savox have a lot of votes!
Well being this side of Xmas and having to replace rather than buy Servos for the first time for the Yak I have ended up going with the PowerHD 1501 Metal Gears....highly rated by The Servo Shop and various forums, and ironically after some Internet shopping I found them from an American supplier for 6 servos delivered for £65....I gave The Servo Shop a chance to sharpen their pencil but they could only come in at £104.
Thinking I was buying copies or knock-offs they arrived today and cannot see any tell tale signs that they are.....oh well I guess we shall see how they perform! Certainly if I ever get lucky enough to enjoy a 30cc or 50cc it will be Savox all the way!
On the plus side it looks like the broken Hitec is being replaced free of charge too so will keep them for a smaller model or eBay them in due course!
chd.hk/Product_Detail.aspx?id=40
Thank you once again for all the advice and responses to this thread.
James