A/B testing for sample editing

What is the problem?

The effects have a preview button that allows to hear how the sample will be modified, but there is no way to A/B testing against the original sound

What should this feature achieve?

Allow greater control and finer tweaking of samples

Are there any workarounds?

None, other than saving different copies of the sample and A/B test after all the effects have been applied

Any links to related discussions?

Any references to other products?