T I learned on the Ride DHK which I soon learned was a super stiff board...
The DHK is not a "super stiff" board. The DH wasn't even a stiff board. StiffER sure, compared to other decks, but definitely not something I would consider stiff.
Check out the CAPiTA Horrorscope and the Ultrafear. Seems like they may be good options for what you're looking for. Horror is going to be softer than the Ultrafear due to the Ultra's added tech. I can go into detail if you'd like me to.