Shoot Ogawa has a great version that’s ungimmicked, I’m not sure where to find this at the moment but if you can track that down it’s one of the best in my opinion. Mr. Pearl has a download that teaches a couple versions that uses 4 cards, a download can be found at Vanishing and Penguin. Curtis Kam has one in his Palms of Steel: Silverado that’s not too hard to find…but as the title suggests it’s not the easiest. There’s a lot of versions in books or lecture notes… just need to find one that’s not out of print and spendy! Try Dave Neighbors!