I wouldn't say that it's particularly easy to figure out, providing you do the sleights cleanly and naturally, but the 'easy' routine isn't particularly difficult, and the trick is quite short. The 6 points 'difficult' routine should be a lot more challenging, and much harder to work out.
Bycicle808, I use this all the time, no one has ever figured it out or suspected a bla bla, when i give them the solid disc that i removed the hole from they scrutinise it, no thoughts are ever given to a bla bla. To be honest I figure out most tricks when I watch them but the regular spec does not think that way, however I did not guess holy moley when the guy in the shop demo'd it for me. I recomend this, just take time when removing the hole, show the effort it takes by your facial expressions