A lot of crews shy away from using the last 3rd hour as they have to fill in a report for the CAA. This is mainly due to the fact they can't fill in the form properly, regularly get the max allowable FDP wrong, don't re-factor when an extra sector is undertaken thus resulting in 3 hr + breaches blah de blah. As for Florida 2 + discretion there's no chance!
And probably 50% of sinners are the Training Captains...
