I got the datapoint I was looking for regarding reimbursement for $50 Gift cards under the new Saks 5th Ave Deal with Personal Platinum:
- I added the Saks Deal to my AmEx Personal Platinum (referral link here)
- I then linked my card to Ebates for 4% cashback
- I then bought a $50 gift card in store and had the charge reimburse two days later
Next step is to hit up the rest of the cards and merge all these $50 cards together into a giant gift card, but I will have to do this in January as I tapped out the other 12 cards on stupid crap.