I did blow out a sidewall on a Schwalbe Marathon Plus on the C&O at the Paw Paw tunnel. It used to be very rocky at the southern exit of the tunnel. I think that is fixed or at least much better now. I used a piece of an old inner tube to patch it. I was able to get to the next town for a new tire. Worked well.
Tweezers/forceps are important to find those tiny protruding wires and thorns.
I do not like the self adhesive patches. If I am going to repair a tire I use Rema patch kit. I had 1 tire with 13 Rema patches on it before I threw it out, I could have put a 14 patch on it but decided I got my moneys worth
