From everything I have read your system should be fine as far as power is concerned. I do not want to get into a debate on the pros and cons of various 2.4GHz systems or the 2.4 vs 72/36/35 MHz in this thread, as every time it is started, the thread just seems to degrade into the abyss and this thread has been one of the best and longest build threads for any ARF that I have been able to find on the internet and I want to keep it that way. If you want further info on 2.4GHz systems you can find lots of info on the net or PM me and I will discuss it offline.

Cheers
Pupmeister

PS I have the new JR DSX9 with a JR921 2.4GHz receiver in mine and I love it