On Thursday, February 25, 2016 at 4:47:48 AM UTC-5, Casey wrote:

Where are the updated books about modern competitions, the change in design throughout the years, the use of all the new glide software and instruments?

Sounds like you want George Moffat's "Winning II", the Brigliadoris' "Competing in Gliders", some of John Cochrane's articles Soaring starting with "Just a Little Faster, Please".

Evan Ludeman / T8