I would offer up that the "willfully suborning perjury" is weighing pretty heavily on JB's mind ..Oh I think CA perjuring herself is a given at this point.
But I agree that the SA probably will not pursue it against her...unless JB hauls her back up as a counter to his rebuttal. If the defense puts her back on the stand the SA will open up all legal barrels on her and I wouldn't be surprised to see JA go directly after JB for willfully suborning perjury.
that is one of the BIG reasons why he is fighting so hard on this particular issue ..
{the other.. obviously = the premeditation} ...
But.. if he willfully suborned perjury to negate the premeditation issues..he'll be in more trouble than CA.