Check out this post I made ,in sharpening grafting knives:
Sharpening grafting knives - #35 by Hillbillyhort Hillbillyhort.
With out my thumb under that twig as a rest ,the twig bends when cut,
Then bends back , resulting in a curved cut.this is what happens if I try to cut away from me.
I am not a wittleer, I want one flat cut first time.