Water cooling experience with EK VGA block

My card, using Extreme bios, seems stable (ambient 23c) around:

vGPU 1.213v

+129MHz on GPU -> 1333MHz boost

+493MHz on Memory

SCORE

P12083 3DMarks

GRAPHICS SCORE

12392

PHYSICS SCORE

12764

COMBINED SCORE

9539

http://www.3dmark.com/3dm11/4391064