I configured my phone with your settings and it's running nice.
I can't really feel a difference in "smoothness" and it's the first time I change GPU frequencies and UV... but I still can't really tell a difference... what should I expect from changing GPU params, other than battery life?
Samsung Galaxy SII i9100
RootBox 4.2.2 unnoficial 20130909
Dorimanx Kernel 9.38