Hey Christian,
Are there any other improvements that could be made for scrypt mining with the GTX 750 Ti's with the Maxwell chips? It seems like there is unlocked potential with these cards.
I couldn't find such potential yet.

And face it: scrypt GPU mining will most likely be unprofitable in 3 months, even for the power-efficient 750 Ti's... we're looking to get alternatives working in time (Quark, X11, Heavycoin, possibly Riecoin too)