RE: CX2 - Up'ing the POWER !
H3li
I don't know how much the X grams on your cam are as I don't have gram scale. But for fun and right now 10:53 Cal. time I just took my CX2 and taped another eflite battery to the belly. The first battery lift show red on the ESC and would only get 6" off the floor. However, I took a fresh charged battery and took off again. No problem hitting the ceiling. Again I don't know the gram weight of a stock battery but it has to be more than your cam, I would think? Also my red light came almost immediately and power dropped but I did hit the ceiling and fly the living room "briefly". Hope this might help you. My blades and batteries all to eatstomuchrise's spec too.
JPee