Sort of bracing for "Stupid Question Backlash" with this one, but it would be great to know which effects specifically require a stereo output to get their full effect.
I'm going out on a limb and guessing Stereo Widener is one, plus some chorus effects (but which ones?), other modulation effects like tremolo/pan, etc.
I'd like to know this because I'm still undecided about stereo out vs mono out for recording, and if most of the time stereo would be unnecessary and literally redundant, I'd rather just use mono.
Thanks, everyone.