I recently converted to iCloud photo library and on my iPad, I checked the "Download & Keep Originals". All of the photos thumbnails have been downloaded but when viewing the photos, they are low res. It's only after I enable wifi when I get the pie graph status download and the high res photo comes in. Am I incorrect in assuming that it'd download ALL of the photos at once in high res at the get go? Does it only download and store permanently when I choose to view the photo? Is there any way to force it to download and store all of the photos at high res at once for offline use?