How to "chamber" the long range rear hook?

[OMGWTF]

Go watch the video in that thread just posted recently asking about the lead uppercut. The way the Russians throw it is the best version I know of, unless you're hitting the body too. Cubans throw it the same way.

Got it so best to drop the hand let it fly back as your hips rotate then come all the way around with your elbow behind it.