He said he interviewed all 18 years old ranked 30-48 (1-2 ball prospects) who turned out 5 ball after group demonstration. Then I believe he used remaining points to scout unknown skills 18 yo with good height from those ranked 1-29 who didn't do group demonstration. You hope to find a good one early so you still have enough points to interview him and find out his potential.
"Air is beautiful, yet you cannot see it. It's soft, yet you cannot touch it. Air is a little like my brain." - Jean-Claude Van Damme