To be honest ive never seen the Mayne version. I have heard it is based on the fearson effect, though i assume he has some new ideas/presentational slants. Judging by the pictures ive seen, the gimmick looks very similar. Im sure he will credit Fearson in the manuscript. Penguin sells Andrew Maynes version on their site, a booklet with about 6 diffirent illusions, and if you scroll to the bottom of the page you'll see the reviews. jim