those are without alcohol. no chance it was bad GP9. I got a sticky test tape with the machine, which I used when I first got it. Not knowing anything about shed, I proceeded to record my first song on GP9 (all that was available at the time). I ran into problems and basically cut that song off the tape (there was a shortage). I wasn't supposed to use the other half of the reel but after about a year I totally forgot and used it....I guess it was contaminated.
When I first got the machine, I loaded the tape on the left side, because I didn't know any better. This time I loaded it on the right side, so the "sticky" part was actually concentrated at the end of the tape, where I got my first dropout. the second song to the end of the tape is where I got my second. Then I started "hearing things" on all three tapes I am using on this project and really freaked out....