There is a variation of Paul Harris' Butterfly Cut on the video. Keyword VARIATION. It starts like the Butterfly cut, but has a smooth close finish. Credit is given to Paul Harris. If you want to see the original Paul Harris cut then see a different video. We figured magicians would be smart enough to recognize the variation.
The Butterfly cut is the exact variation that Greg Wilson teaches on his Pyrotechnic Pasteboards. I believe it is Wilson's variation as David Regal also credits Wilson in his book Constant Fooling. Therefore, I don't believe it is your variation.
Look, I don't really care. It looks like a great DVD and the guy doing the
moves (you?) seems adept at the moves. Someone came to this forum in what seemed to be a not so cleverly veiled attempt at marketing the DVD and asked our opinions. Some of us thought that material looked rehashed.
Personally, I don't care so long as proper credit is given and permission is granted on effects that are from a still-living creator of the effect. Then if it is rehashed, who cares as long as I am learning and it is a good value.