:p Needed some rest...hmmm, your advanced vtc settings are slower on my card when pool mining, compared to --benchmark.
Aaaaaand, got my 780 to do 5.33kh/s mining yac but it crashed overnight :/

cudaminer.exe --algo=scrypt-jane:YAC -d gtx780 -i 0 -b 8192 -C 2 -L 6 -l t12x32 (yac)

cudaminer.exe -q --algo=scrypt:2048 -d GTX780 -C 0 -b 512 -i 1 -m 1 -H 2 -l T12x20 (vtc)

Should I use x86 or x64 win version for these coins?
Thanks again...

EDIT: maybe this will help someone:the new Z kernel works best for VTC, the new nvidia optimized one that is.
Getting up to 335kh/s now, and it seems stable at 1293mhz core and stock memory.

Yac might have crashed cause of unstable memory, gonna try it at stock with oced core and see how it goes. VTC seems more profitable though.

cudaminer.exe -q --algo=scrypt:2048 -d GTX780 -C 0 -b 512 -i 1 -m 1 -H 2 -l Z12x20 (vtc) -> 335kh/s (and as low as 252kh/s...pretty wild swings but mostly 300+)