yup, the 9080's even at 8.5v were way too low my mine. I replaced them with the savox servos, and boom! new heli!
I was told by a few guys that they had plenty of torque for the 700, so I tried them. and yes, they did, for just flying around. but as I got a little better and started flying harder, I noticed very quickly that they were not enough...I would be willing to bet with new servos, and the adjustments the vbar guys have thrown out here, you will be up and going perfectly!
now I just need someone to help me with my dang vbar! lol