HC is an old old method...
The biggest joke or fallacy is that because of the great advantage you gain that it is the most revered AP method...
I did some foot work recently and the methods are tough and the consensus is that it is not worth the added EV because it takes so long to find sloppy dealers
Besides techniques, it became obvious that the most important thing is to work with the right people. There is no way your going to be able to catch these games on the reg. At best, it is a nice weapon to have in your arsenal if you happen to stumble upon such a game. If not, you better be in contact with a pretty tight network. Of course, that is easier said than done