[Cornell Fiji]

Most (and I am saying 'most' and not 'all' because once and a while you will run into a statistical outlier like DERB) long run winning players who play above micro stakes think about their hand's ev against their opponents range on every hand that they play. Not calculating your expected value against your opponents' range means that you are simply playing your own cards, which is a horribly losing proposition above micro stakes.

When you have played enough, calculating expected value against your opponents range becomes second nature and you should be able to do this relatively quickly.

In a tournament setting you should always know your stack size and the blinds and therefore you should know your M at all times.

Also, this post probably belongs in the Beginners forum and not NVG.