[QUOTE=duende;960489]Sure, this may very be the end result sought after, however it is easy to see how “outside-the-box” techniques can and do bring these concepts and principles into sketchy teritory.
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Yes, agreed. HFY has a great approach in that outside-the-box techniques primarily seem to me to serve to “hand off” to inside-the-box. That is I think also the purpose of “man sao” in many other WCK approaches.
Structure inside the box is a universal working principle, WCK or not.
For example, rolling with a BJJ black belt who has a Braulio Estima type guard, I learn the boundaries to the box and am taught to stay inside the box as every time I get a limb extended out past my structural boundaries that would correspond to inside the box WCK, it gets isolated, I get stretched out, and I tap quickly. When I maintain structure, not as quickly.
Upon watching the Judo competitions at the last Olympic games for examples… It was surprising to see how often some competitors gave up their COM to commit to certain applications and techniques… Often ending in poor results btw. Time was not on their side IMO
Judo has sacrifice throws, appropriately named. They know they are giving up space and COM to execute them. They are lower percentage. That said, edging yourself closer to not giving up as much COM in those throws works better 
I think this is one of those areas where we all seem to be after the same end result, but the means to the end and interpretation of these applied concepts are actually very different.
Yes… What something “looks like” doesn’t matter, as long as it first meets the prerequisite of being at the right time and space.
Yes, the means, interpretation, and execution towards these applied concepts in different arts is that which is interesting and unique and different. Yet as the skill level in the fighter gets higher, I see a lot of the fundamentals which are the same - right space and time. Those are what interest me now currently. The particular shapes that arrive there are not as much.