Display MoreWhat would be the point of tracking it in stereo in the first place then, Tommy?
Unless both sides are identical (perfectly in-phase with each other), yes, it will be "phasey".
Even if they are in-phase, all that'll happen if you collapse them to mono is that you'll notice a slight increase in level as their energies combine.
If you're planning to do this with existing stereo tracks that happen to be in-phase with the intention of panning them left-and-right after you've summed them each to mono, by all means do so, I reckon.
I recorded something in stereo and it’s partially phasey. If I sum then to Mono will they not be phasey?