is there that big a difference between the feeling of french vs. swiss, one is more delicate that the other, but is it like a night and day difference, or only 10% of a difference?

Hello Fullcap, I have worn both and I tend to like the Swisslace feel better. There really is not that much of a difference not like night and day but little differences. The feel of the French is more stiff and you feel it rub more on the scalp. Thats about for me. I am sure other people would respond with their opinions.

There is difference in both but not a lot, for me French was slightly thicker and stronger then swiss lace.

But swiss is better then French if you are exposing hairline.

Not a great deal of difference between the 2. Swiss is slightly softer to the touch but with a full head bond there is no difference on the scalp.
Must say I have never had a problem with French lace at the hairline.