For Samsung refugees, I just discovered you can rearrange the home row buttons so the back button is on the right. You find the option under Display/Home touch buttons.
If you get the keyboard case, use an alcohol swab to clean off the back of your S6 before trying to stick the back on. I initially had trouble with the back coming off easily. Once I swabbed it off it sticks very securely.
So i got my tab yesterday, at first Ithought the attachment wasn't bad, but then after using for the day Ihave to say Itoo am very dissapointed in the spen attachment. This is nearly as dangerous as the oriignal apple pencil pluggin into the bott...
So your can trip Knox and jump?
The 3 criteria I have seen for JoD are.
1. No screen cracks or major physical damage
2. The phone boots
3. No water damage
I've never seen any posts about someone getting denied because of KNOX....
I've been using PIA (Private Internet Access) for a year now. It has good speed, fairly inexpensive, and it can be installed on up to 5 devices.