The 2nd shotthey refer to isthe high shoulder shot, if excuted a show stopper with a CF no doubt. See the attached skeleton pic...FYIsome don't realize the size nor location of the actual shoulder blade or bone.
I don't consider neck shots a good choice to much can go wrong, as this is the part of deer that moves the most, quickest and often without warning. No doubt if excuted they will drop em where they stand but a slight miss can be a real nighmare. I have been part of a few botched head and neck shot track jobswhich was enough for me to cancel this shot from my target list. Prior I had successfully harvested a few deer with a neck shot but now won't chance it.
I consider a shot with the vitals in it's path the one to flick the safety, just more room for human error. (this excludes the "Texas Heart Shot"!!)