i wanted a faster and higher torque servo in my cen gst 7.7, so i installed a hitec hs-5945mg servo. i'm getting weird behavior though when i install it. i get major glitching all over the place and my 1400mah receiver battery dumps after only like 3-4 mins of driving. i threw back in the stock cen servo and everything is back to normal. no glitching and longer receiver pack time. with the hitec servo installed, it performs flawlessly with really good speed and torque, but with glitching and battery dumping. what's going on?