Sync folder structure but only changed files not full folder

Hi
I'm trying to sync only the changes from folder A to folder B.
Let's say I have a structure like this:
Folder A
- file A.1
- file A.2
- Sub-folder AA
- file AA.1
- file AA.2
- file AA.3
If I modify file AA.1 within sub-folder AA, *all* the files in sub-folder AA get synced across, not just file AA.1. Is there any way around this?
I've read the page on Syncing Folders and used the template rule as well as tried variations on it. Reading that page, I was under the impression only changed files would be synced across but I'm guessing because a changed file changes the last modified date of the folder it's in, that makes Hazel thing the whole folder needs syncing.
Is there an easy way around this? TIA.
I'm trying to sync only the changes from folder A to folder B.
Let's say I have a structure like this:
Folder A
- file A.1
- file A.2
- Sub-folder AA
- file AA.1
- file AA.2
- file AA.3
If I modify file AA.1 within sub-folder AA, *all* the files in sub-folder AA get synced across, not just file AA.1. Is there any way around this?
I've read the page on Syncing Folders and used the template rule as well as tried variations on it. Reading that page, I was under the impression only changed files would be synced across but I'm guessing because a changed file changes the last modified date of the folder it's in, that makes Hazel thing the whole folder needs syncing.
Is there an easy way around this? TIA.