Hey Alienteabagger, the stock servos are pretty sloppy, many upgrade to the Hi-Tec HS-55 servos. The extra slop might cause some bobbing and weaving. It's a easy upgrade and really makes a difference in how the CP hovers. The bobbing up and down, well I haven't heard anyone else talk of this so I thought I was the only one. I figured that as the tail motor or servos were working they are pulling power from the main motor, so if the gyro is correcting the tail the main motor is slowing down just a bit and you loose altitude. I have found it sort of soothing in a strange sort of way. I am new to heli's and I have had my little AXE CP for about two months. I have gotten tail in hovering down pretty good and am currently working on my sim for left and right side hovering. I am having a ball with all this, a lot more challenging than RC planes that is for sure. Plus I can practice at night in my shop.