Now the great unlikely-to-ever-be-fulfilled mission of this thread is: can you tell us, to some degree, why it is different or what it is that makes elbow power in aikido different from that? I realize some people wish to keep cards close to their chest, but throw us a few bones, or bone shavings even.
I think the videos I cited (as opposed to the one cited by Andy, which seems to be the 'bone of contention (har!)) might have been a little clearer. IMHO.
On the other hand, I'm interested to know what Mark, Greg and Dan mean by 'elbow power'. It seems it means something else to them?