:I'm not reporting you, since you've stopped the reverts. I also have no doubt that you pronounce it correctly. But I am very doubtful that the two stresses you write accurate reflect the way you pronounce it, so if we revert it, the 'dubious' tags will go back until we can settle this to everyone's satisfaction.  

 :My earlier impression was that Chichester has the same stress pattern as step-sister, which we would transcribe with a stress mark on the first syllable only. If that's not correct, can you give me a word in English that has that same double stress as you have on Chichester? —