I'd like to start playing my Shadow Priest alt more, but I am having trouble knowing where to start. Up until now I have dabbled with different talent choices but have not gotten much experience with any one set in particular. I am currently at 699 ilvl (no tier) with only one item upgraded, so I am sure I can get to 710-715 within a few weeks without much effort.
I know there are many Shadow Priest guides out there and am not expecting anybody to write a new one just for me. The question is, with my current ilvl and lack of experience, which guide / talent choice / stat priority would be a good place to start? I've read Kilee's "Old Man" Guide to CoP and Yva's Shadow PvE Guide on these forums as well as guides on HowToPriest, Icy Veins, and Noxxic. These guides have differences of opinion on stat priority and CoP rotations - I get that which is best can vary with stats, fights, and experience / expertise, so again I am just wondering where is best to start.
Bonus question: how viable is AS? Most of my Shadow Priest experience (has often been my main) has come before CoP, so it does feel much more familiar to me (plus I like DoTs), though I am up for learning something quite different as well.