I was also successful with Link2SD. I partitioned my scard using the Android app Aparted, since I use a Mac and the Minitools was not an option. I also had to use 2 FAT32 partitions. I was then able to move many apps to my scard but using 'link to' rather than move.
I don't know that I can actually write from an application bcs I have not tried that. However what I do not understand is what happened to the first of the two partitions? Until I get this understood, I will continue using my little old 8gb scard and not yet try this with my 64gb SD card.