713,
That's the trade-off for the undetectability--SFS is delicate. I don't recommend Super Fine Swiss for newbies because if they're not careful and don't completely allow the adhesive to dissolve when removing they can rip the base. Try French lace next time--it disappears almost as well and is much stronger. Some customers prefer the TL 500 which is a 3" SFS front with a French lace base--it gives a great hairline but also has the strength of French lace.
Regards,
John