Is the HBK a 450 class? whaat determines the diference between a 400 and 450, 500?? Also is the 2.4 GHZ setup necessary or is the old system still decent in comparison? I found a HBKV2 with 2.4GHZ and a belt driven tail for 149.99 or a HBKV3 with 2.4 ghz and a brushless motor for 234.99

Or how is the Esky belt CP2? thats 450 class right?