Find a brewery / brewpub that serves an IPA from a cask. It's the "proper / traditional" way. The natural carbonation and being served through a beer engine make for a creamy/smooth mouth feel, rather than thesharp/acidic feel of a Co2 forced carbed keg.
It's tough to find a IPA on cask/beer engine as it's not something your local TGIFridays is going to have. But it will honestly reset your taste for what an IPA should be.