Most grandmasters I watched during a game were first thinking a few minutes, then wrote their move on the form, then thought for another 30 seconds looking over the total board, then play the move (or correct it).
This is integrated blunderchecking.
As Fischer said: ratingpoints and prizes drop off naturally from your level.
So when I train, I care about my level, during a game I go with the flow.
At 2:19 PM, CelticDeath
At 3:18 PM, Pawnsensei
Tom Rose has a theory on this. He feels that chess is done in three different levels. Meta-Meta Chess, Meta Chess, and OTB Play. The first two concentrate on picking and studying the material, the last is getting out of your own way so to speak.
I have read other people writing about this same phenomena in sports. By the time it is time for us to perform the practicing is over and we should let our subconscious do the work. Because of this I feel you should still work on thought process in your training but once it comes time to play a tournament then let let go. In Karate it is the same. You practice slow moves to force your body to memorize the timing and motion then when it is time to react to something your body moves effortlessly and without thought. Does that mean we should just practice reactive training all the time? No. It means we do all that slow tedious impractical work for 99% of the time so that in that other 1% of performance it is automatic.
That's why I like Pandolfini's article on thought process. He doesn't explain what you should look for in each move, because that list would cover thousands of pages, but rather he lays out a logical thinking order that you should go through. His thought process lets the player's abilities come forward. For example he says check all candidate moves. He is purposely not being specific because "candidate move" will depend on the player's current ability and the current position. You don't look for a back rank mate on every move do you?
For a more detailed thought process check out "Think Like a Grandmaster" by Kotov. The "Tree of Analysis" is only meant to train your mind to think in a logical manner, it is not meant to be thought about during a tournament.
Finally, I think ignoring thought process especially in the beginning stages of chess learning, is a dangerous thing and will stunt chess improvement in the future. Which is why coaches recommend not playing too many blitz games. You can burn in bad habits ten times as fast and you are only relying on intuition instead of analysis and thought process.
PS
At 10:42 PM, King of the Spill
I posted a comment on how one player was tempting to think each move here.
What I found out with exercises:
When I'm dooing knight forks I suddenly see them in all my games,
when I'm practisin double attacks I see them everywhere. For me no list. What you really learned will come out in the game.