Dynaudio Audience 52SE vs. Contour S1.4

I recently bought a pair of Contour S1.4s and like them but I hope they still need breaking in. I hear some stridency in the higher frequencies at present but I've been told by a Dynaudio representative that this will disappear after 250 or so hours of break in...he recommended having the speakers out of phase, facing, at med vol to expedite the process. Any comments?

I've been playing them a lot and the sound is definitely improving! I find them pretty neutral and the overall response is better and highs much better now.