so as far as applying the wrapper, I use a stainless tray, because it is easier to cut on, and if you lightly mist the outside of the wrapper, it sticks well to the stainless ( a trick i found on youtube of Sam Leccia rolling a nub)
you always want to start at the tip of the leaf, with veins facing up.
Remove a thin strip of the outer edge of the leaf, this is the edge that shows!
Then remove a larger section of the inner edge, it does not show, and contains the bulk of the veins.
