With the appropriate level of volume should be fine. Even some guys recommend it with a slightly higher listening level.

Naturally listening and take note for the change of sound its my preferred way, some of others burn their headphone in by playing pink or white noise.

I tried this... to compare a burned in set against a new set for their sound similarity. Most of the headphone don't sound the same for me. More happened to full sized headphone or those IEMs have large driver/diaphragm.

  They are still pretty overpriced. Yet i agree with your statement saying that listening to a particular headphone over a period of time makes you feel a little bit more having the "toleration" for the distinct signature.

I would say the beats have a distinctive (and bad) coloration on the sound signature that appeals the mass consumers with faux impression regarding good sound. Zero deep bass, mid/high bass humping along muddy and hollow like presentation of mid and high. Veiled like I'm listening to music...