just a detail, but i wonder what kind of strings is usually use for tin builds?
i put some bluegrass reso strings on a biscuit tin i've built ;i'm really satisfy when amplify ,but it not work good for playing unplugged,. so i definitely play it as an electric tin guitar
does acoustic strings would be good for playing amplify with a piezo too, or do you think electric ones are better?
what do you prefer to use with your own tin builds?
(sorry for my english, hope you understand!)
Piezo will pick up any vibrations, you could use nylon strings or weedwhacker cord. I usually use light gauge because I am afraid the tins aren't built for the stress of heavier gauge. I have come to use electric strings on everything, Keeps inventory easy and I like the sound better. I play a lot of blues and electric guitar strings are closer to the ones used on even the old acoustic blues.
i have used banjo strings, or the 4 top strings from a guitar ( metal strings)
On my oil can banjo, right now I have Nylgut strings for the first four strings and a steel string for the drone. To up the volume, I play it with a metal bluegrass finger pick backwards on my middle finger.