You can alter the frequency of TM backups via the System tab of Cocktail. That seems a lot easier than the method described here and in other links at this Google search page. Of course, you could always disable automatic backups and back up manually when the mood strikes.
Jon
macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365
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