While I'm sure if I scour my many books for advice on the subject, such advice won't come from real world players, so all opinions are welcome please.
I'm one of those people who sits besotted with his clock and frequently indulges in Bronsteinesque time consumption. I believe at the moment that besides desiring to be thorough this stems from lack of understanding of the ins/outs/imbalances (whatever you wish to term it) of the stem positions from openings of my repertoire, such that, when I get into a non-book or sufficiently unfamiliar position, no matter how early in the game, I start verbalising to myself, and/or calculating lines as if I were doing research in the comfort of my own room.
So the question I put to you all is,
What is clock time in a serious game NOT to be used for? Should I be able to come to the board and know that once my book knowledge runs out in a position, I ought to be conversant enough with the positions I'm getting, that say, I'd be able to give my club a 5 minute presentation on the static/dynamic features of my position, the typical possible plans for each side etc? Or am I just a slow bod?