I hope you don't take this as disrepect Liquidsn, or a knock on your ability, as I really enjoy your blog, and it is obvious you put much effort into you magic and have a great mind about magic - I also agree with much of what you say about magic. I just wanted to talk about the weaknesses of the push off - as many think of it as the Holy Grail of DL, but I am not so sure...and I would love your thoughts on it.
The difficulties I have observed, outside of doing the push off in perfect alignment 100% of the time (as that is the goal, perfection and consistency - which I have NEVER seen anyone do the push off in work reliably) - are the amount of attention is takes - I have seen many do it, and notice that ALL of them LOOK at their hands when they do it. Now, I am not sure if you perform, but when I see many do this - it really takes away from the connection you have with the audience (head bobbing up and down during multiple lift sequences)...and since they look where you do, they often are looking at the move while it happens. For both reason, I have found that many working pros (although able to perform the push off) choose to use a break for it's reliablity.
Moreover, I have also noticed that people do the push off very slowly - not that it should be done the opposite, but I find the careful speed makes it look mechanical, contrived and suspicious at times. You often mention on your blog that a sleight should represent the natural move that it is replicating. I find that the push off makes people turn the card over in a way that makes it seem important - not as "haphazard", as if it was a single card, moreover, (and perhaps picking pepper out of fly$hit) but, I don't see people pushing cards off at the corner - but instead with the thumb in the middle of the card...
Which is why I prefer the using the Vernon push off, using the ring finger, instead of the middle, to prevent that "ramped" look you see when it is done.
This allows the maintain the naturalness, of not only my hands, but my body language and eyes, while not worrying about alignment. The only weakness - you still need a break. However, Aaron Fisher once said to me - if you are doing to do a DL now...you should have had a break ten minutes ago...which he would extend the time duration on throughout our discussion...a hour...a day - interesting moral
Anyhow, I would love to hear your thoughts on this.
All that being said - I want to say great blog - thanks for sharing that with us - and I would still love to see more work on it. I only wish I could see more of you and less of the other spectrum of the normal curve.
Cheers