Sorta depends on the radius (curve) of the nose. The more the curve the more cuts 'cause you're just trying to keep the lap from wrinkling. A pointy one may only need one at the very tip or maybe three; one at the tip and two on either side where the outline breaks. A large radius, like a nose rider, may have a few more to accommodate the curve. Where you have sharp points you cut out a little "V" instead of a slice. That will keep the lap from overlapping (no pun intended). Its a trial and error kind of thing too. Don't be afraid to make too many, its not going to hurt anything.
Sorta depends on the radius (curve) of the nose. The more the curve the more cuts 'cause you're just trying to keep the lap from wrinkling. A pointy one may only need one at the very tip or maybe three; one at the tip and two on either side where the outline breaks. A large radius, like a nose rider, may have a few more to accommodate the curve. Where you have sharp points you cut out a little "V" instead of a slice. That will keep the lap from overlapping (no pun intended). Its a trial and error kind of thing too. Don't be afraid to make too many, its not going to hurt anything.