Solo Nav got cancelled last night due to some badly forecast weather. Never mind, it's scheduled for next Tuesday instead.
With regards to the Solo Nav thing - I think it comes down to the 'requirements' and the schools NQ course. My school chooses to do an hours solo nav as a confidence booster. At the end of the day you must have three hours dual including one hour nav, five hours total and five solo 'stop and go's'. That alone kind of sculptures the course out for all but one hour which could be dual or solo. I'm spending that hour doing a solo nav ex ...
... if the weather is ever okay.