https://forumserver.twoplustwo.com/2...-cards-640800/
From 10 year old thread, this is my thinking:
Post #33
"Waiting until your turn to look is essential, not because of tells or anything ridiculous like that, its pretty unlikely anyone is good enough at the table to accurately deduce anything from you.
It is because when you're playing for like 10hours+ the time goes infinitely more quickly when you wait because you are only usually waiting for around 20 seconds as opposed to say 1 minute/hand continuously for your next mental stimulus. i.e. if you look the moment it is dealt, and obv the majoirty of the time you will get cards you don't want to play, you are then in a state of boredom for at least 1 minute until the next round starts.
If you wait to look, you are waiting avg. 20 secs to look at cards and then approx 30 seconds for your next stimulus. It keeps your mind from melting and makes you much fresher and more concentrated.
Obviously this mainly applies to a slow structure and at a volatile cash game or HU etc doesnt matter but it will make the long gruelling hours of live tourneys much more bearable."
Also, post #29:
"There are two reasons I never look at my hand until it gets to me. First, I like to focus on the action before me, mentally setting my range of hands to play and how to play them. And second, if I look right away and have an insta-muck, I find it annoying to wait until the action gets around to me to fold. With an insta-muck hand, I of course have no interst in the play before me, and therefore don't pay attention, and that is -EV."