The crown size has changed over the years and these days Robert Mackie crowns are a bit larger than they used to be. When I did my bonnet "Jocking" feature thread here, Robert Mackie took my old(some 30 years or so) bonnet and made(at no extra charge) my new bonnet with a smaller crown. From what I remember my new bonnet crown is quite a bit smaller(same size as my old one) than is currently the fashion. Just saying.