I never shot the rifle "hot" and always kept the bore clean using the usual BR cleaning precautions. Put 1,000 rounds down the tube before accuracy took a noticeable turn south. The rifle was rechambered in 22-243 (plain) and has been shot very little since the rechambering. It appears that you can get nearly the same velocity with or without the AI conversion and any gain is not worth the effort to me any more.
Too many rifles and too little time.