When I tried to sell packs with true C rate specs using my own C rate testing method I tested various 6500 to 6800 packs. All packs were new. The 6600-65C is a Hobby King Nanotech.

You can also check other data on these packs such a cycle life testing and IR testing on this thread I did on Hobbytalk.

http://www.hobbytalk.com/bbs1/showthread.php?t=362697

I've never been one to hype up the packs I sell with special names and claims but one thing I'm proud of is that I have always sold packs that I believe to be as good if not better than what others offer. This is why I did the test on Hobby Talk in August of 2012.