EDIT: I was trying to use the tesla kernel. It doesn't appear to like Jane. I can squeeze out 2.3 KH/s on my gtx 780 using K9x2. Going to keep tinkering.
2.4 kHash with K4x4 on GTX 660Ti, I also use -C 1
Tesla, Fermi and Legacy Kernels don't do scrypt-jane yet.