Experience, testing, experimenting, etc...same as the rest of us did when we started. Nobody has this down to a science.
You just have to look at their skills, best position, DMI and practice this week (aka form) and put out who you think is best then compare their performances over time.
Edited 9/29/2007 10:46:50 PM by brianjames
"Well, no ones gonna top that." - http://tinyurl.com/noigttt