Ok,maybe Im looking at this the wrong way.But it seems by combining cells into a large capacity pack the c ratings must go down ,by design of the pack.Because of the increased runtime,and the cells sitting right on each other,you will get increased temps.So it would seem to me that combining the 2 you would have to drop the constant rating to make up for it.So if you used 20c 4000mah cells to make a 20c 8000mah pack,the pack would not actually be capable of that .As the pack itself would have to discharge at either twice the time,or twice the amps,either of which would cause more heat,in pack form.So to over come this they must drop the c rating some,to come up with an accurate pack rating.So because MA uses a single cell rating on there pack,the bigger the pack the further off there ratings became.Then a TRC 10c ,that alot claim are underated,Actually perform that good because to accurately make a 10c 8000mah pack,they use 15c cells,so it actually will do 80amps for 8000mah,but seems to perform better then that . This is just my theory, So please correct me where my thinking is askewed.