A lot of good tips here! Came back from the alps a couple of days ago and I have one point that I did not see: it seems counterintuitive but if it gets really tight that you would have to take the turn in first gear at idle revs or below you need to give it some revs (I am at about 5k with my small single cylinder engine) and feather the clutch to regulate your speed. The revs keep your bike stable and the clutch is much better to modulate your speed than the gas.

I know this wears your clutch but they are usually oil cooled and are more robust than a lot of people think. And after all they are meant to be replaced when worn out. A clutch is cheaper than taking the shortest path down a hill because you dropped your bike 😉