I do a monthly sync between my image catalog on an attached RAID drive and my portable RAID drive I use when I travel. I noticed that I'm having a much longer sync run yesterday and today than normal, but then realized that whenever an image is tagged or untagged that counts as a file modification, and I've been doing a lot of checking and unchecking recently for reasons that are tldr. Here's my question: have you considered making tagging a catalog-only function rather than a file function? In other words, make it tag the image record in the catalog but not change the actual image file?