. If I am going to create a significant amount of change, then I'll usually just redirect it straight to ChipMixer rather than a change address I own.
Always sending change to a particular mixer can be a breadcrumb for a prying eye to see. I presume that it is fairly uncommon to send change to CM as part of a financial transaction.
As an individual, I think it would be best to use varying methods to protecting your privacy, even if one method somewhat reduces your privacy.