Sketch on Sketch Projections either looping or incomplete

Hi All,

I am trying to model my CK glasses. I am having trouble creating the front frame when I use sketch on sketch projection. I have a few questions:

  1. How do you know which two views/sketches to use to project a 3D curve?
  2. Why is my FS (FrontSide) curve looping after the half way point?
  3. Why is my ST (SideTop) curve not going all the way down?
  4. Can we project closed loop sketches on one another?
  5. Is there a better way to model the frame (tried 3D sketching)?

Thanks a lot in advance for your time!

SolidworksSketching