Ive lowered my motors in the past but not 100% whats best for the fiesta.

I had 30mm eibachs on my 2.0 focus and they where very good, hardly any loss of ride quality but noticbly better in the bends, I apprecaite it may be harder to achieve this with a smaller car.

Im tempted to do shocks and springs however dont know if this is overkill as like i said ive had springs in the past and ive been chuffed with the results. I dont rekon 30mm is putting the standard shocks under to much grief either? Have heard that the ZS shocks are shorter/stiffer anyone know if this is true?
I'll be running 195/50 15 wheels/tyres.

Ive renewd all the bushes so she rides quite nice at the moment tbh and its only done 50k anyway.