some of the Masters series were 3/5 while others were best 2/3. a decision was taken last year to convert Miami to a best 2/3. the main reason is TV ratings. viewers (not us obviously) don't want to sit thru that much tennis. most viewers prefer two or three exciting sets of tennis than 5 sets of endless rallies.
i think the change helped Agassi frankly. by the end of the second set, most of those Spaniards are only now warming up and getting ready for the long haul. most of those guys can play all day. a longer match IMHO would have favored Moya.
"For now, Roddick seems to play with the intelligence of a fence post." Greg Couch, Chicago Sun Times