Hi Guys,
I did a whole video on this - (and HEAVILY laboured a joke about french bakeries)
The key with cross on is to look for oncoming sections after your bottom turn
- so if its the devils tack (Starboard tack sailing out) - then look for left handers coming at you
and if its port tack sailing out - then look for right handers coming at you.
The key to this is that at the point of connection of your bottom turn to the on coming section the wind direction is perfectly cross shore!
(i explain this at around 1.55 below)