Jofre is, to use a term which is often over-used, a Legend!
Francis is at BTT, he now travels with Rafa about 12 weeks per year and has worked with Lopez and Costa in the past. Great guy, i've had the privilege to spend some court time with him before.
Pro AB i don't know much about I'm afraid.
I tweet - @ashtennis guru (no spaces)
I Shoot - www.flickr.com/photos/ashtennis guru/ (again no spaces! grrr)