I have. And I continue to use it in various ways. It really works for me. I also believe it's principle of filling and sealing are probably why some find success with other techniques like scrunch and pump. I was going to do a video demonstrating how I interpreted this MAP method this weekend. I'll post a link here when it's finished.
You can see my wavy tutorials here: https://www.youtube.com/playlist?lis...ZNxhBHSXAW40OQ and my wavy blog is The Wavy Nation http://wavynation.wordpress.com