I guess the most common used would be the three piece head method................... since this is what many builders base a pattern design on. I do have to say the Nip and Tuck is whole new way of puppet building and although may look challenging makes a very nice puppet. So for my self I like them both but use the three piece head method the most because it seems to be the easiest.
I'm glad you are getting your book you will really enjoy it. Now remember if you have any questions when reading it come here for your answers. The staff at Grey Seal will more than happy to answer your questions.
I was a little confused at your original question as this forum unlike others is only to duscuss " Foam Book " questions........................... as stated in the rules Vania posted the other day.
http://greysealpuppets.com/foambookcommunity/index.php?topic=32.0But I understand more now.................... Thanks Dutch Puppet.
Ss puppets