How To Resize The Base Of A Stock Swiss Lace Hair System?

[Hair2019]

So I recently got my first hair system - (a partial, stock swiss lace). I went to a stylist who has her own salon and is experienced with hair systems. She resized the system by cutting the base down to size to fit over my balding area, then did the fitting and cut in. I did not see what she was doing when she resized the base.

However unfortunately she lives quite far from me and I do not want to keep spending time and money to have bases resized. Could anyone tell me how to resize the base of a lace hair system? I presume you just use scissors or a stanley knife and leave the hair hanging off the sides and don't cut hair while resizing the base, but I need to be sure how to do this. I have also heard that you should not cut the hairline of the base, as this will ruin the bleached knots/graduated hair density and not make the hairline look natural.

I want to have the option to be able to comb my hair back (exposed hairline) and forward (unexposed hairline with fringe) depending on whatever style I feel like having on any particular day.

I should add that I am going to order a custom hair system next, but if I ever order a stock system in the future (for example as a backup), I would prefer to save money by resizing the base myself. Surely it cannot be that difficult.

Thanks.

 

[BaldBearded]

This is something best left to someone who knows what they are doing.

I do the resizing once the system is attached (from the FRONT FIRST). I flip up the perimeter, and cut the lace (and NOT the hair) with an "Exacto" knife.

This is the best way to get an exact fit...