I Can't Understand How To Export Tracks For Mixing

[Zeisner]

Always export everything in stereo in 32-bit float, always export everything totally dry and wet.

It can happen that people forget that they applied some gentle stereo effect to a signal (which includes panning) which will get lost when converting to mono. Using stereo as format ensures that nothing gets lost.

32-bit float ensures that there will be no additional clipping or floor noise (32-bit float gives you a headroom and legroom of more than 700 dB!).

Having dry plus wet versions is also helpful. The mixing engineer can listen and get an idea for what sound you're aiming at. They can come to the conclusion that they can use the wet version right away because you really nailed it or they can rebuild the effect (chain) with better gear or they can mix your dry and wet signals with their own wet signals. In short: having options is good. In case you're wondering if you should export every single wet signal after every single effect: no, at least not right away. The mixing engineer will ask for additional records if necessary ("Hey, that amp and fuzz sounds great on the lead guitar but the chorus afterwards doesn't cut it. Can you please give me the wet guitar without the chorus?").

So in general, more data is better than not enough data. It's easier and faster to discard what you don't need than to reconstruct what is not available.