A few days ago the replacement of the defect main gear assembly arrived from HobbKing.
As you might have read in my previous post, I’ve received a defect main gear assembly with my HK450GT from HobbyKing (http://www.rcfan.info/first-hobbyking-support-issue_145/). This was the first time I had an issue with any of the products I bought from HobbyKing. The customer support was very kind and instantly agreed to replace the main gear. Without having to send the main gear assembly back (which would have been more expensive than the part it self) the sent me a replacement on their costs.
Although it took a month or so to get the replacement (they had to source the replacement from their supplier first) I was quite happy with the way things turned out.
All after all I can only say, thank you HobbyKing for dealing with the problem and for sending me the additional spare main gears.