Thanks, and thanks for the extra advice, Grasa.
Ed, I received the St Jean as a 'bonus' from this winter's F4F exchange. If they are true GSJ, they certainly fit Baud's apparent description for being difficult to root. GSJ wasn't really on my radar because the eye looked larger in pics than is ideal for my area. But since it's found it's way to me, I feel a special need to make sure it survives. LSU Gold should have a bit of wildness to it: hopefully it will be a good engine to promote shyer cultivars.