I agree with Jerry - in a case like this, there's not much you can do to save all the info. These whites are just going to be blown - and moreover, nobody's really looking for detail there anyway. I often have the same problem with white numbers on race cars - let 'em blow out. They still look like numbers. Here it's a tad trickier, but really nobody's expecting to see the details, and hopefully the viewer will be looking elsewhere in an equestrian image anyway.
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!