Unfortunately, usually my initial song material is pretty messy. Most of the time it is just some captured ideas or jams, that will be re-recorded later anyway.

Altogether I am pretty happy with the ACW. It is still the handiest tool I came across so far, when it comes to create an initial basis track that can also be easily re-used by other tools,(e.g. my DAW). I find the time stretching and bar marking functions a lot better in ACW than anything else I have seen and tried so far.
Obviously I could split the track, process the areas seperately and join them later again. But that would be a lot of additional work, also causing further trouble.

A restriction of tempo equalization to a marked area in the ACW would be the easiest and best solution from a user perspective.

BiaB2023 Plus, Win11, AMD 6-core, 32GByte RAM, RME Fireface UFX, Samplitude ProX7, REAPER 6, Studio ne 5, Melodyne Studio, Toontrack SD3, iZotope MP4, NI Komplete 12, Korg Collection, etc.