oh KT that stone is just singing !! it''s a stunner, i love it!!!
in terms of the head, if you are looking for something to put on an existing setting, my head is probably more ''friendly'' to that kind of addition/modification, slammie''s head is more incorporated into the setting itself when built, not sure if you could just plunk slammie''s kind of head into an existing setting. BUT if you could somehow adapt your setting to accept a head like hers without it looking too choppy, i''d suggest that. or lynn''s head is beautiful too if you want a 4 prong. i''m a 6 prong addict though now, i love the extra prongs giving the stone that little bit of oomph that makes it look a wee bit bigger.
I think that I am going to go with your gorgeous head. I had a 4 prong before and had always wished I had gone with the 6 prong so now heres my chance...... Not to meantion the DSS sets in real quick and someday I want to join the 2+ctw J club!