I picked up a Warlock today; it was stamped with a Soft Warlock stamp. It's super-duper stiff; even stiffer than the Medium S plastic they stopped making. I didn't grab a G9i reissue so I can't compare it to that, but it reminds me of the Firm S plastic they used to make. It feels a lot like a Firm Wizard I have with an '07 club stamp. No way this disc would pass a flex test. It could be old stock, but I found it funny that it had a Soft Warlock stamp.
I also picked up a Warlock labeled Super Soft that feels exactly like Evolution HPP. It was for sale for S plastic prices so I grabbed it. It was a "find Warlocks in weird plastics" kinda day.