Trio Pro. I too like the slip clutch/ physical disconnect servo design. But they?re both good. IMHO it comes down to panel space. The Trio uses more panel space, meaning it has more knobs and indicators, so it?s a bit easier to use. The TruTrak has to multiplex some knobs, but it does use less space.
I also like the fact that you can use the electric trim thru the autopilot, with trim speed adjusted for airspeed, even when the servos are off.