Working good here! 98%, mostly from initial start up.
780ti SC non/ACX - +51 offset - 220,000 KHash.
Opening Chrome and leaving it running gives more hash? Opening maxcoind wallet and setting affinity to two less cores increases hash?
Settings:
cudaminer.exe -a keccak -q -l K1024x32 -i 1 -C 0 -m 1 -H 2 -L 128 -o stratum+tcp://stratum1.max.hashfaster.com:4004 -O {username}.1:{pass}
http://i.imgur.com/zFoa601.png