Wish I could offer you help but I've been running LS since May with zero issues. The one bit of personal advise would be to ditch Links2SD as it has caused issues on all the devices I have installed it on. I now use foldermount faithfully and absolutely love it. Good luck :)
One thing you can try is foldermount. You can d/l it for free and move 3 apps. If it works you can buy the full version which allows unlimited moves. I never could get link2sd working properly and the developer never answered any of my emails.
I have the G Pad and think its really a great device. I'm on KitKat but may end up reverting to the original Jelly Bean. It's a real pita dealing with the constant bad sd card dismounts. Kit Kat does seem faster and more fluid.
If your planning on using the sd card I would stick with the...
Another option that's very easy is to use any disk cloning software. I recently had issues with bad dismounts and changed sd cards 4 times. I used MiniTool Partition Wizard Home Edition and it worked perfectly. I had the new sd card in a reader and the old card in the tablet and then chose the...
https://forums.androidcentral.com/e?link=https%3A%2F%2Fwww.anrdoezrs.net%2Flinks%2F100048248%2Ftype%2Fdlg%2Fsid%2FUUacUvbUpU3748126%2Fhttps%3A%2F%2Fplay.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.devasque.fmount&token=8iMuAMIL
I use it with all my devices and it works perfect :)