Question on "Power Tele" and piezo bridges

Years ago, there was a "Nashville Power Tele", which had the Strat middle pickup and a Fishman Power piezo system.

I've tried a guitar with both systems once. It was a Rick Turner Model 1, what Lindsey Buckingham plays, and switching through options, I found it hard to distinguish between the magnetic and piezo pickups.

I keep thinking I want a guitar with a piezo (like I wanted a guitar with a Sustainer until I got one), but it seems like unless I set it up so there's a signal chain for both the piezo and magnetic pickups. If you have Power Tele or equivalent, do you use it? How do you use it?