The swifts are transformative to the handling. However, they are a poor match for the stock struts/shocks. Mine also settled pretty low, which means less travel, which means less ideal handling on loose surfaces as well as potential clearance issues on low maint roads.
Overall I like my swifts an awful lot but would be happier with less drop so they were more versatile. In CA I think you'll dig them, just plan on jumping on those bilsteins when/if they become available.