Caldwell is tough to compare to any other saddle for fit or feel. I've never sat in another saddle that felt like my Caldwell. I prefer a 14.5" seat to have some room to move and that's what mine is, but I've tried many 14.5" saddles that didn't feel the same. I can ride my daughter's 13.5" Shiloh comfortably because it has a flatter seat.
I called Charon to order mine and she asked lots of questions about my height, weight, build, and inseam. I love my ProMax.
I love the Caldwell but I too like a little bigger seat, normally I use a 14 but I like my 15 Caldwell- and I think its the best feeling saddle ive ever been in but before you buy you should call Caldwell and talk with Charon -you can look on their fb page too and she goes into great detail of how each saddle tree sits on each type of back