I used 1.25 and the Razor Code is livelier than Black Code. Ruff Code is deader for me and closer to how I remember Black Code playing. I imagine their stiffness ratings would be fairly close.
I found great spin from both. Ruff Code grabs the ball very well, yet so does Razor Code partly due to its better ball pocketing. At first I felt more at home swinging very aggressively with Ruff Code due to its deader response, but it only took me a couple of swings to trust the softer response of Razor Code. I get very good spin from both, they just feel different when hitting.