Phil,
OK, let's really look at your "covering" clip:
http://www.youtube.com/watch?v=HbjWqYJ0BgQ
I say it is really not good. Here's why.
1) look 1 second into the clip when YOU (the teacher) "jab" -- and freeze the frame so you can see it. You'll see that the end of your arm (fist) is over a foot away from hitting your partner. That isn't a punch -- it is just sticking your arm out there. You are punching from out of range. This is a bad habit. If one of my guys did that (and they wouldn't) I would be screaming at them! Anytime you punch, you should be in range (or you should at the very least be trying to be in range) to hit. Every fxcking time. Not only is it a bad habit for you, the puncher, but it is a bad habit for your partner -- he should be developing an eye for range and the habit of not reacting to attacks that can't possibly hit him. This leads to . . .
2) look what your partner (Rashun?) does in response -- he is reaching to block (something that isn't even a threat). His arm is extended a good 2 feet from his body/head. All he has done is expose himself and for no reason. Reaching like that is only going to get him KO'ed by anyone with decent hands. This is precisely the sort of thing a good striker wants you to do, and it is what a good coach/teacher should be correcting.
3) look at 2 seconds in when your parnter kicks WHILE YOU HOLD YOUR PUNCHING ARM EXTENDED. Tell me, Phil, when is that EVER going to happen? Do you know people who fight by keeping their arm extended after they punch so that their partner can hold onto it? Do you know fighters that punch and don't immediately retract their arm? Why did you LEAVE your arm extended? Another unrealistic thing to do.
4) look at 8 seconds in when you do the pak/gaun sao to block his round kick. First, the kick itself is bad. It is out of range too (see a pattern?) and he's not kicking with his shin, like any good kicker will but with his instep -- which won't do much even if it lands. Second, your pak/guan -- a two-handed block that also drops both hands -- is utter nonsense. You won't in all likelihood have time to do that, and even if you did all that you would accomplsish is injuring your hand if he was really kicking with power. Not only that, but you drop both your hands to deal with his kick (which is exactly what a good kicker wants you to do -- the tactic is to hit low to open high) which leaves your head open. Terible. That is a perfect example of what not to do.
5) Now let's look at how you teach your cover -- more problems. When the kick is coming in fighitng, you can't (won't have time to) tell if it is to the body or the head, all you can see is that a kick is coming up. If you cover as you are showing, you leave your head exposed. See how your hands are away from your body/head (like at 1:09) -- that space leaves an opening. And if he hits that opening, you are OUT. You have to cover both the body and head at the same time. The other thing you aren't doing is rolling (arms and body) with the impact. If he kicks with real power and you don't roll to dissipate the impact, you will be rocked (and your arm may get injured).
Now, let's compare that to Rodney's cover. And, BTW, he's boxed, trained MT inThailand, and trained many MMA fighters, and as I told you Rampage uses his Crazy Monkey:
http://www.youtube.com/watch?v=qguQfn0QtBs
1) look at 27 seconds in where he shows how NOT to hold your hands (which is what you are doing).
2) He also shows how to raise the shoulders, tuck the chin, etc. which are necessary for the cover to work -- those things you don't do.
3) look at 43 seconds in when his partner jabs and look at the range. He is making contact with the jab. In other words HE REALLY PUNCHED, not just stuck his arm out there, He's in range, trying to hit his opponent. You'll notice every time he punches, he really punches with the intent to hit (even if not pwerfully) and make contact.
4) looking at how Rodney blocks, do you see how his hand is in contact with his own head -- this lends support to the arm since with a powerful blow you won't have the strength to keep you hand away from your body/head like you teach -- the blow will collapse/knock your own hand into you.
5) Do you also see how he keeps his hands moving and rolls on impact to lessen the impact? Again, not what you are doing.
Here it is again:
http://www.youtube.com/watch?v=jHJGfJmj4I4
Same things.
You see, Phil, when you train with good, skilled people like Rodney, and then you see what you do and advocate, well, it just makes it hard for me to believe that you know what you are doing.