Does anyone know where I could see a video of dan and Dave's version? That would be great.
As hot and cold can be used to predict it when the spectator both tosses and catches the coin, I can't see it being anything like mine, which is purely sleight based. I have two methods, even though you toss and catch it, in each the spectator calls the coin either before or after it lands and you control whether they win or lose.
Based on what I've seen Jay Noblezada do, I believe it is a method that is taught on the Hustle, that UK TV show, which can be found on youtube. I'm also working a little bit on improving that method so you can actually flip it into the air like normal, as opposed to just throwing it, though obviously the original is not my idea.