I don't believe a trick itself can majorly be called 'perfec't, but i do believe, that Magic would be a bit more believeable if it wasn't so perfect. My OOTW routine from my lecture notes is called 'Nothing in this world is perfect', and it is a completely different approach to the effect which actually makes it believeable.
I have always thought that OOTW is the strongest trick EVER created it, and a lot of the response i get is incredible for it, as anyone should who performs it. However, doing my regular club work on fridays and Saturdays, i perform this about 5-6 times a night. And a couple made me think one day. After it, they couldn't believe it, literally. They said it was too impossible etc, and it made me think...is this really what some people think?
So with that in mind, i now create Magic where the spectators have no other option but to believe the only possible answer is Magic.
Most spectators love to see a Magician mess up, and if you do, it makes it look like you and your Magic are not perfect. however, to then make a good Magician from it, you need to do what any good Magician would do...make it right. So, when creating, try and make it seem as if you have made a mistake, then correct it. Like a top change. That can be one of the best pieces of Magic alone!!! The card is second from top, supposedly in the middle. You explain it is going to jump to the top, it is wrong....the spectators now relaz, and on the off beat, you top change for the selection. So, you messed up, not perfect, but hey, who is?!?! However, as a Magician, you can correct your mistakes and turn it into the selection and become a great magician again. These little things really can help advance your Magic and performance