The upper lip is tuff. The hair there is the most tuff part of the shave. I have been SR shaving for 2 months and cant quite get the shave there that I want. I know it will eventualy get there. Try to shave it first when your blade is freshly stropped like someone already suggested.

Somedays I can get it smooth and perfect and other days forget it. The corners where it meets at the corner of your 2 lips it is really tuff the hair seems to be the thickest and toughest .

Keep at it you will get it down, just a matter of time.