Technique

"Elite powerlifters get more neural drive from trying to bend or break the bar while benching. You can apply the same principle for a much stronger kettlebell military press. In fact, it works better with the double press than the single and even better on the eccentric portion of the lift. Here's the how and why: Crush grip the bells—"white knuckles"—on the concentric portion of the lift. This will really enable the body to engage the lats and keep the shoulders sucked into the sockets. On the eccentric, imagine that you are pulling a bar to you and you are trying to bend it around the top of your head. Keep on crushing the kettlebells. This will heavily recruit the lats, and enhance the active negative, creating a stronger concentric action on the next rep. Of course, your total press volume will probably decrease when you first try this new technique. Why? Because you will be using much more muscle to perform your presses. This is good, it means you will get stronger sooner as your body recruits more muscle fibers."

Relax your arms and shoulders and push the kettlebell back between your legs using your "armpit muscles"(the lats and the long heads of the triceps)