When you set it up it usually doesn’t matter. You’ll get a few missteps - it’s inconsequential.
If you resorted to using the existing trace result due to performance issues,
a) you are doing something else very wrong and
b) you just have to live with the limitation. It’s one trace, not 2.
In professional or even indy projects you usually have foot Ik going that gives you 2 traces anyway. As well as a way to make the sounds play without a notify (using the curve).
What you can count on, always, is for things to go like they did in .22 (if I remember the version correctly) where we were left for around 4 months without a landscape physmat response due to whatever “improvements” they made at the time 