Just got the new CNC blade grips in and also put in 3 new HS-55 servos. As far as the CNC grips go I can't really tell a difference other than no real chance or breaking the balls off. The new servos made a world of difference it's like a whole new Heli. I was able to hover for almost the whole stock battery before I could not hover at all although I did spend some time on FMS during the down time. The 55's are a must upgrade very easy to install using the stock arms although it is a tight fit and level the swash plate per the instructions and you are ready to go.