I just googles the z55 and its the same volume so thats cool. The Skareb is lighter but not by much only like 4 or 5 oz. The frame sheet is also removable to reduce weight.
Yosemite Sam: Are you trying to make me look a fool?
Bugs: You don't need me to make you look like a fool.
Yosemite Sam: Yer deerrrnnn right I don't!