Guys, whose who own GTX TITAN, have you tried to enable full DP calculation mode?
I'm not sure, but i think that it will increase hasrate, because by default TITAN uses only 1\24 of his DP modules.
Full DP can be enabled in Nvidia conrol panel => Manage 3D Setting => CUDA double-precision, and there you should mark GTX TITAN option.

If someone have TITAN, can you test this mode, and post screenshots here?