Noticable difference between 15 and 16 cas, with the same clock speed?

yourip2001

Prominent
Sep 5, 2017
11
0
510
My friend is upgrading to DDR4 ram and offered to buy me G.skill Trident Zs (since I'd considering getting them, and they're the exact same price right now), and I'd give him my Ripjaw Vs in return. They're both the same in many ways, and they both run at 3000mhz clock speed. Only difference between them is that my Ripjaws have a 15 cas, while the Tridents have 16 cas. There's another Trident Z set which has 15 cas, but that one is 20€ more, so I doubt that's worth it. Is there any noticable difference between 15 and 16 cas? What's the best course of action?
Many thanks in advance!