The binder is set out.
The filler is gathered up and bunched. The roller tries to get the same amount / consistancy along the length of the cigar, done mostly using the long leaves and by feel. More bits can be added to "less full" areas. From what the roller said, (I think his name was Louis, from Miami Cigar; Aurora Preferidos, La Aurora and Don Lino cigars), the filler is laid out in piles, and they take X number of leaves from pile A, Y number from pile B, etc. in order to match whatever particular blend the roller is working on that day. In some factories, the roller does all the work; gathering the various leaves from the forman, setting up the filler/binder, pressing, and wrapping. In others, some workers do only the filler, others bind and press the filler, while the roller wraps the final product.
Filler is bundled up for the binder. The filler must be straight...it can't be twisted, like rolling your own cigarette...or something else!. Twisting the tobacco leaves causes the cigar to draw harder.
Wrapping the filler and binder. Rolling must be consistant along the length of the cigar. If it isn't, twisting can occur.
Scott"there'smore...don'ttouchthatdial"M