In an average session, I would say I play my best poker - or near enough my best - for maybe half of the average 2-3 hours session. During this time I am on autopilot, in the zone, and using both table reads and PT stats effectively while playing hands, not perfectly, but consistently well.

The rest of the time - which invariably includes the beginning and, if tired, the end of the session, is about me playing blindfold as it were, basically trying to ABC it while also struggling to come to terms with implied odds, position etc. - I have to really concentrate for the first half hour or so not to make any mistakes, not to call too much.