Wow, you're a trooper. I wish I was that organized.

I did a gig recently where I was using the house system and I spent 20 minutes trying to get ANY sound. Finally discarded the house cable and put mine it and bingo. Then plug in guitar. Spend ten minutes more jackin around trying to get ANY signal. Discarded the house cord, put mine in, bingo, no problem. Two bad cables in one night. From now on, I'll just use my own.