I’m glad you asked. Questions like this provide opportunities to clarify the rules and make them better for everyone.
On a related note, the simple composite rules are still a little fuzzy when it comes to differentiating between adding pieces to build up the handle versus having a double tapered wedge either between the backing & belly laminate, or placed on the belly with gentle fades into the belly laminate. In these cases, it may be unclear if the wedge is part of the bending limb or not. It isn’t necessarily possible to tell just by looking.
Alan