Hi Zmyst,
200 x is usually what GM prescribes...but I've seen him say c if one can't find x...but let him confirm this before you get it.

CP - yes, calc phos...he's going up in potency because of the progess you posted...means she needs a higher potency.

I'm not sure if she should stop the 12x or not...so wait until GM confirms that one way or the other...but I don't think it will hurt...but still, let him say.
Lisa