Adepts and Mentor Spirits Options

[Bunsen]

I have a question:

On pg 192 of SR4 mainbook it statesunder the Mentor Spirit section that, "Members of any tradition may have mentor spirits, including adepts."

yet on pg 79 of the mainbook under the description of the Mentor Spirit quality it says, "This quality is only available to characters with either the Magician or Mystic Adept quality."

Curiously ommitting any reference to the adept.

Yet when looking through Street Magic, spefically in the section when talking about Shamanic adepts it seems to imply that they could have a mentor spirit, and on pg 175 under the description of the Beserk Adept power it says, "Adepts or mystic adepts who also possess the berserker disadvantage from a mentor spirit will find this power triggers automatically when they become berserk."

It seems like all the supporting material point to adepts being able to have a mentor spirit and therefore the quality, and that it was just ommitted from the quality description..?

What does everyone else think? And is there an official position on this?

Thanks