Does Californian - especially "So Cal" - IPA differ from the IPA style found elsewhere?
Today, I spotted a beer from Buxton (an excellent British brand) which purported to be a "So Cal style IPA".
No, it depends on the brewing process and what hops are used. There tends to be the juice east coast ipa versus the west coast hoppy ipa. They both can make the same style, and they do. There are plenty of ipa's done on the west coast that fall under the "juicy" style.