A skin hairline is just not going to look as good as a good swiss lace front. Period. However, a piece with an EXTREMELY thin edge and a bit of work can look reasonably good. You'll need the front edge to be 0.02mm or less. The front will need to be trimmed very closely, and bit of adhesive such as G2BG will be needed to disguise the very edge.

I won't look perfect, but it can be passable and very, very easy to maintain. I wouldn't recommend skin fronts for very tightly exposed hairlines, but they can survive casual exposure.