The thing I don't like about clamping my LiPo's in is it tweaks my chassis. I use two servo mounts laying down one in front and one in back of the pack (I had to drill holes for them two) and 3 servo mounts standing up down the middle in the holes that are already there, then tape them in. I use soft pack 6000's so I glued some plastic on the front and back of my LiPo's to keep from denting the packs where it touches the servo mounts and the rear bulkhead, then some foam on the inside and out side on the packs for more protection. I know it sounds like over kill but I only had to do this one time and my packs have no dents anywhere and never move around. I hope you understand what I'm doing