Unless you are landing on a slippery runway, use of more than idle reverse thrust will not stop you quicker (i.e. improve your landing performance), it will merely modulate the brakes to achieve the same deceleration rate as if you used idle reverse (detent 1).
That of course is only true if you rely solely on autobrakes for deceleration. I know some outfits do that, others still require minimal use of autobrake and only use it on wet, contaminated, reduced braking action and limiting airfields or situations.