I was at an outlet a couple of weeks ago and spotted the Tatum in black. It did not have an "F" before the style number. It appeared to be the FP version. However, they could mix old FP stock with new outlet stock.
I was at the Outlet in Aurora Illinois yesterday and they had the Tatum Whiplash bags (in both black and white (chalk, beige?) mixed in with the meager supply of FP deletes. I checked and all the tatums didn't have a dustbag and there was an F in front of the style number on the creed patch. The bags felt lighter and the leather seemed thinner than the original boutique bags, but they were still very pretty bags.
They had a few other MFF bags mixed with the FP deletes and they had taken down the sign about "Flagship" bags - so there are definitely some MFF whiplash bags out there, buyer beware!