canid
Doesn't really matter. Consistency matters, I believe. I personally shuffle over, under, over over over over over (clear as mud?). Five times. But that's just me; perhaps an OCD thing, ya think? Like I said, I think however you do it is right for you, just be consistent about it. Even THAT may not matter. There's no right or wrong way, no better or more accurate way, which it seems like you're looking for. You could throw the cards up in the air and read them as they land if it works for you. Do it YOUR way! (Hey, they should write a song...)