ok im in the market for some servos for my 1/8 buggy. Im a hitech guy, I run 7955's and love them. But I dont wanna spend 200 bucks on them. I was looking at the I think its the 1256 and 1257. How are these servos on buggy and are they reliable? IM gonna be using a life battey with them. Is it safe to use a life battery with them