LMB twice the size of a GSH will have no problem preying on them. So if you stocked 7" GSH, bass 14" and up will be snacking on them. In stunted ponds where there are few bass over 12", this is where stocking these larger GSH really pays off.
Aquatic vegetation is ideal. If your pond doesn't have any or a small %, then I would sink cedars in 3'-6' of water. Areas of shallow 1'-2' water with cover is good for the YOY to take cover in.