Transferring a drawing
Take your time when transferring your final drawing. A strong drawing is the basis of any good painting, so don’t rush through this stage and have your work suffer. I think a grid is the best method because it’ll reinforce your drawing skills.
A grid is a useful drawing aid. Put a grid of the same ratio on your reference and on your panel or canvas, and it’ll make it easier to create accurate transfers. Charcoal pencil works well when drawing directly on a panel or canvas. Once that’s done, I’ll ink the drawing with India ink and erase any lines that I don’t need. Carbon paper is a useful tool. Projectors work well, too. There’s no cheating, but if you’re using it as a crutch then you’re robbing yourself of a chance to develop your skills.