How to resize the base of a stock swiss lace hair system?

[grincher]

An all lace base is important as a a cut poly can leave the hair looking unnatural.
Leave the hairline and cut behind to size. You should use hair clips so the reminding hair isnt cut.
You might want to create a template and cut your stock to that size or slightly larger and then reduce slightly as needed.
Alternatively, use a template to create a correctly sized piece as I do. Custom made will always look better.