I am pleased to have recently purchased Mr. Regal's Deep Guilt Aces. It's natural, automatic, easy to handle, and works every time. It's clear though that a switchout is required as the deck supplied offers few if any other effect options. Most of my other gaff decks allow me to perform a hand full of effects, until I get to one the deck was originally designed for. This doesn't seem possible with this effect, which is why I'm using it as a closer. The principal involved here is extremely clean, and the spectator does the critical work. I don't hesitate to recommend this effect to other performers...but again, the deck needs to be switched, which is simple enough. I think the effect is powerful enough to justify that bit of extra effort.