Hi - As Mark pointed out, the slurs exercise should show 'rest stroke' behaviour for the left hand, so I've re-recorded it. Presumably, if your LH fingers are stronger you can pull the top finger off without bending the string....
I've also had another go at the Waltz. I don't think my fingering is as secure as it should be, as is demonstrated by the major slip at the first pass of the second section. And, yes, the thumb is still there....
Finally, an attempt at Maro Pontkalleg:
See you in lesson 4!