I've never really noticed and no one has mentioned it to me before. When I lift up my arms with nothing in my hands, my arms don't naturally lock out. I can do it, but it's very exaggerated. I used to skateboard a lot, and my elbows took quite a beating. I don't know if that would have anything to do with it, but it could be.
Actually, I just watched a few videos on youtube and I see a lot of other people do the same thing. I'll probably try to make sure I have a longer lockout on a Push Press/SOHP PR, but other than that, I'm not too worried about it. The last 225 lbs Push Press the arms were straight. I'm more concerned with getting the head through.
I've never done it. I may give it a shot. I'm pretty sure if I do a full out locked behind the neck jerk I probably wouldn't be able to complete the complex with much weight. I'll try it out next time.
People have a lot of variance in the range of motion of their elbow joints. You learn this best in jiu-jitsu. My natural lockout is a hair short of parallel upper/lower arms. I've known a lot of people whose natural lockout positions were well past 180 degrees. Those are the guys you just give up trying to armbar. It seems really gross to me because my arm would have to be snapped to assume the same position :icon_neut