In my January Light From the Lamp DVD reviews I talk about how Roger Curzon reinvented the effect known as the Pseudo Center Deal. Its an effect that was published in Cardshark by Darwin Ortiz. Ortiz notes that he had work on the effect going back to the 1970s.
Well it turns out that Mr. Curzon, and it is apparently documented in Roger Crosthwaite's Inner Sanctum videos (released five years before Cardshark), was doing the effect since the 1970s after working with Peter Kane. As any card guy worth his salt knows, Peter Kane is one of the more prolific and brilliant card men to grace the planet. Ive no doubt that between Mr. Curzon and Mr. Kane that they, at the very least, came up with this piece concurrently with Mr. Ortiz.
In my mind, this shows the importance of mentioning such factoids in books and on videos. I appreciate Mr. Curzon taking the time to contact me and point out these details.