G&G - awesome customer service!
I contacted G&G's support email last Thursday to order a few spare parts for my GK5C. They responded to my email within the hour and after trading several more messages the parts were ordered and paid for via PayPal.
The parts arrived this morning from Taiwan.
I just wanted to pass on that the nice people at G&G are a joy to deal with and the level of service they provide is absolutely excellent. I am extremely impressed which is why I'm posting this message as I feel that their attention to customer service should be trumpeted to all!