The evo is a much lighter, thinner and crisper rod and much more refined than the SS with higher grade carbon. It will cope with heavy ground at a push but is more of an allrounder. It has an excellent casting pedigree and is well capable on the tournament field with 125-175gr leads despite it being so thin and light.
It will feel softer than the SS but dont be deceived, once you get lower down its just as powerful.
Komp SS is heavy and cumbersome but a better choice for battering about.
If it were my money it would be the ZZippy all day!!