The remaining local authorities were invited to group discussions, with the aim of having one group made up of more experienced authorities, and another made up of less experienced authorities.
Gwahoddwyd gweddill yr awdurdodau lleol i drafodaethau grŵp, gyda’r nod o gael un grŵp yn cynnwys awdurdodau mwy profiadol, ac un arall yn cynnwys awdurdodau llai profiadol.