Try clearing the cache, then select the Status tab. Let it finish refreshing (spinner should stop spinning in the top status bar). Then run the test by arming, waiting for the count down to complete and then opening an entry zone. It's possible that Haiku did not yet load the new entry timer values when you ran the tests. Clearing the cache simply invalidates it, but the new values would only be read in when you go into a tab that displays the area info, such as Status, Security, etc.