So far I have only made a couple of these, to my surprise, both smoke quite well, I used a small leaf from Bursa, and filled it with Rustica, the "wrapping" leaf was fairly moist, not wet, but moist enough to not break or tare, :
Special technique ?, don't think so, I just rolled it with my hands, same as I do with cigarette papers, I did see that if it was any longer, it would be more difficult,.... practice probably would be help full, for me I have had plenty of that, with papers, I have been rolling my own since I was 16, about 45 years,.. have tried some rolling machines, found them very cumbersum, and never liked them, ... with the leaf , it is trickier then with paper and took some concentration, with paper I can roll one while I am driving, walking,or even on horse back,..don't think I could do that with a leaf, I needed a table,and both hands.
Ahh , after it was rolled, I then got it wet, with saliva, left it a few days to dry out before smoking it, no glues, or any thing like that,..to my surprise, not only did it burn well, but was quite tasteful too, enjoyed smoking it.
With the corn husks, that is another subject, but I have found it is better to tear a very thin strip off the corn husk, actually 2, and I use them to "tie" each end, to help keep them tightly rolled,..later I will try to post some photos of that.