So I created a folder on my desktop, CTRL C the entire old SD card, CTRL V to folder created. Inserted new SD card into phone, CTRL V from desktop folder to new card folder on phone after deleting folders that were there.
I'm missing apps and some of their data. Where did I go wrong?
EDIT: Fixed it. Instead of using copy/paste shortcuts, I did a select all + drag/drop from folder to folder and this seems to have preserved everything and no data is missing anymore. I think it had something to do with hidden files not being transferred properly when doing the ctrl c/v.
Now how can I maximize usage of the SD card? As I understand, Kitkat has changed the landscape for micro SD cards in terms of what you can and can't store on them. A step back it would seem. Ideally, I would like to store as much data as possible on my sd card besides apps that should be kept in memory such as the homescreen/lockscreen launcher.