1) I use the wheel method. I have a straw that I marked with a line at TDC, I drop that in the cylinder when I know I’m close and line it up. Then adjust from there. Note that because of angle, there is a chance of mashing the straw between the piston and the head. Don’t use anything that would mark up the metal like a screw driver. Plastic or paper straw only.
Never, ever, ever use anything but a single strand of uncooked spaghetti!
That's how they do it at the factory.
Italian engineers know best!!!
