Looks like your piezo has a "cold" solder joint...
Awesome pick, bruvva!
Silly. You can't piezo with knots in the strings.
You're baking it at too high of a temperature
Definitely in the running for the "cheesiest thread on the forum" award!
I see the problem...the peeeayzoh is supposed to be under the bridge, not under the strings...doesn't seem to be enough room to slide it under there, huh??? Oh, and I'd say it's Segiorno's!!
Remind me never to loan you one of my guitars...