A legend in his own mind. Maybe squeezed a little tight?

Definitions!

It's about quality not quantity... ;)

Whatever jaydude I think you've been elected head bingo caller.

b-10

Perhaps you could share your superior knowledge, with us less attuned, and explain just what a "PSK window" is, much less than when it "opens", and what it matters?

I'm still not sure what "a window" has to do with the price of bacon, but NF:2-16-h advises, "PSK- a foul by R (other than illegal substitution or participation) when the foul occurs:
1. During scrimmage kick plays, other than a successful try or field goal.
2. During a scrimmage kick play in which the the ball crosses the the expanded NZ.
3. Beyond the expanded NZ.
4. Before the end of a kick.
5. And K will not be next to put the ball in play.

Which would suggest a PSK foul can happen at any time between the snap, (see NF: 2-1-2 "a ball becomes live when the ball has been legally snapped or free kicked and a down is in progress. NF:2-7-1 defines a "down".) and the end of a kick, provided all the prerequisites of PSK are satisfied, which doesn't require much of any application of common sense to supplement the rule.

(Common sense: good judgment, sound practical judgment derived from experience rather than study. - Encarta dictionary)

I knew you could read and understand the rules. Be honest - you were just playing with us with that other topic, right? I mean, admit it, nobody can be THAT dense.

Oh, before I forget.

Did somebody mention 'bacon'? :D

I think you still might be missing the point, "Common sense= good judgment, sound practical judgment derived from experience rather than study", alone.

Let me try a different suggestion, "When an external interpretation clearly conflicts with common sense and logic, it's far better to apply acquired experience to reason the specific objective, rather than blindly follow what cannot be rationally explained, or understood."

Like density, it's largely an individual choice dependent on your own ability to differentiate between conclusions that really don't make any sense and those reasoned to logically fit the circumstances. Of course you have to be ready to stand by your decision, but it helps if you can explain your reasoning.

That would be the "PSK window". It is not a rulebook term, but only phrase to describe the "interval of time during which an activity [the foul] can or must take place."

It is simply a method of conceptualizing one component of the somewhat complex post scrimmage kick enforcement.

Alfie, I'll stick with the rules as written, as well as the general consensus on the subject. You, however, are free to employ whatever you need to justify your stance.

Be glad to. Scroll up to post number 17 which answered the question.