Hi Nick,
Welcome to the forum, This is very nice piece.
My only worry is your chuck jaws appear to be dangerousy out from the chuck body. The scroll inserts should not protrude beyond the chuck body, There are two reasons for this, 1, safety, the insert could fly out or catch your hands, also this does not grip the spigot in the proper manor, Keep the opening within the makers guide lines. Sorry to be picky on your first posting.
John