Re: piezo pickups in electric guitars
Mixing the two different types is a challenge. The resonance is different between a solidbody and hollowbody, so they each have a different tone and response. A problem with a piezo on a solidbody is there are six different saddles and each saddle is a unique pickup and this makes wiring and balance between the strings problematic. There is also the problem of differing output strengths between the piezo and magnetic pickups. The signal from the piezo is weak and the magnetics are strong, so mixing the two or routing them through the same output jack is a compromise. The piezo really needs its own controls, jack and preamp. Also amplifying the two different pickup types can be a challenge due to their different output levels and EQ.
All things considered I would rather have a separate acoustic with piezo on stage, rather than trying to mix both pickup types on one guitar. I would also rather buy a purpose built hybrid than add a piezo system to an electric. Acoustics with magnetic soundhole pickups are ok, but electrics with acoustic bridges have compromised intonation and action. I would also rather have a dedicated acoustic amp that can mix a number of inputs such as microphone, piezo and magnetic soundhole pickups.
