Oh wow ... that was a sweet treat indeed! I've always admired Harry Lorayne, and this is just another prime example as to why. 5 stars doesn't do it justice!
I don't think it's actually a 'dead cut' (assuming your interpretation is an estimated cut) - check out the effect; it's called Numero Uno from Harry's 1980 lecture notes and also Personal Collection (2001). Nevertheless both effects are dynamite and I can't think of a card man living that could present either with as much flair as Harry Lorayne. The guy is a LEGEND.
