Havent played that much, thou, not for lack of choice.
The structure at my local casino is different, from S.Africa.
The Tourneys all start at 9pm, (later than I would like), and allow re-buys/re-entry, till 11pm, in most of these games, which .. with 60-100 players, means the final table is 3-4pm .. way past my bed-time.
Thats a bit of a shame, as the overall levels of play, is better, than I am used to, and am learning etc, but, the late nights are v draining .. so, have largely avoided.
Will try look for a 2 day .. tourney, which suits my schedule.