Hey Guys!
I've got the CC ICE2 120HV on my E6 with a Flighttech 8a Regulator and Optipower 2S 2150 Rx lipo powering the radio system at 6v and so far it seems to work pretty well but I am going to try one of the new Gryphon BEC's.
I like having the Main power system seperate to the radio power system, it does add a little weight but you have the safety feature of still having control if the main power system fails, and also makes setting up a breeze.
Cheers!
Ross