TRIO+ with stereo mix & guitar FX solution
Unfortunately TRIO+ can play only mono guitar FX by "FX return" but we can use eg. Zoom G1on mutlieffect to jamimg with stereo guitar fx (stereo delay is pretty cool).
Sorry but in this way we can't record loops because "FX return" is muted. Unmuting it allows to record a clean guitar signal and bleeding to headphones mix.
Look at my connections: