To those who said (to me) that piezo pickup is bad... you're wrong
Well, I don't know if you compared it to a high quality condenser mic in a real studio and other expensive gear setup, but for someone like me with a humble bedroom setup and cheap gear, piezo pickup is way way much better.
Also, I own a custom plucked string instrument where I myself decided to choose the tuning as well as string type, I was worried if my small experiment was a failure.
Cause in real life, it sounds sort of bad, like some notes sound off or not vibrating enough. But with the piezo pickup, every note sounds perfect as if it was a carefully made expensive instrument.