I just did Hang Cleans last week for the first time. Now, I'll admit I didn't perform it correct, as I didn't realize I needed to bend my hips back slightly before the jerk portion of the lift. Nevertheless, I felt my shoulders working a great deal. I can see classifying power cleans in the lower pull, seeing as how you start in a deadlift-like position. I figured Hangs would be more vertical pull since so much of the power in the movement seems to come from the shoulders, and you start standing and only slightly bent at the hips.
I'm flexible in where I put this movement (I know I definitely like it, and can't believe it took me this long to include it on my program).
After a little over a year of experimenting with different training styles (if any of you remember when I joined, I use to a distance runner and took up weights to "fix" the damage I did to myself...though I fixed it long ago and have since come to love this sport so much I'm now getting into bodybuilding) and settling for the longest time on the common chest/back, arms/shoulders, legs routine, I've finally over the last month or so began to accept that push/pull regimes are more efficient. I've read a lot of material and now understand the logistics of it.
I've already put together my lower push/pull workouts (after a few weeks of splitting up legs I already notice a huge strength increase...don't understand how I didn't see before that if you split your upper body why wouldn't you do the same with the equally large lower...). I'm just in the process of putting together the other two weekly workouts which will be upper - horizontal push/vertical pull and upper - horizontal pull/vertical push. I'm really excited on dropping most of the isolation exercises in favor of a few more compound.
Anyway, I think I've done a good job balancing my program. I have an even number of planes of motion and muscles worked. I just don't know where would be the best place to put this exercise. I think it would fit nicely in vertical pull (seeing as how I need one for the second of my two 6 week programs).
Maybe I'll post my programs was they're done so everyone can critique them.