Question: On my iMac, 'Optimize Storage' is on. So, if I opt for removing photos from iCloud and download all the full resolution copies, what happens to them when they arrive on my iMac drive? Do they automatically replace the optimized images, or have I lost all the album filing that I have on the iMac and just have a bunch of un-filed images?
Test it. Download a small batch of full resolution photos from iCloud that are optimized on your iMac and see how it turns out.
