Find the smart people; the ones who are well respected in their field: medics, nurses, doctors. And pick their brains for years.
my experiences so far, which admittedly are limited because i am relatively new to EMS, are that there is a HUGE gulf between providers, even ALS, when it comes to getting a good history... ranging from almost "scoop and run, let the hospital figure it out", to our best, who in a short time can gain a tremendous amount of pertinent information.
when one realizes the scope of skill involved in getting a truly good history, it becomes somewhat daunting... realizing that it will take years of practice and experience, and studies, to one day become skilled at it. i am willing to put the work in, so we'll see what comes out in a few years...
i know some will say it just isn't that important, but to me it is.
thanks to all for their input and advice.