Mystic Adepts?, Questions galore, help appreciated Options

[Moxie]

I've read a few topics of how mystic adepts are tough to build but I get confused since I'm so new to SR in general.

Like do most mystic adept use 1 adept power level, and 3 or 4 magic, or reverse it and use 3 adept/1magic along with a power focus in either case? That way the magic side can get bumped up if need be. Basically, what's the optimal mix? Do you add bioware as well?

I've read some mystic adepts summon a spirit of man to help cast spells that they normally wouldn't be capable of.. With the above question answered, how would you build a mystic adept and what's the advantages? I mean, I can crunch out the numbers, but 'why' is it better to do it that way?

How does the social mystic adept work out? Is it mainly due to the extra dice from kinesics that makes them so viable in addition to the max magic rank they can obtain? Do these social adepts typically take commanding voice for another attack option? Or do they rely on spellage to fill that side out?

Thank you in advance for those answering.