look i know youve heard enough of a federer racquet switch already but this time its serious. federer falling to number 3 is catastrophic at the least. federers game has really taken a hit because of a lack of power. what he needs to do to make up for it is to go to a wide beamed 95-98 frame. federer should do some testing with wilson and look at the BLX Pro Open. A 96 inch frame would work well for federer at this point in his career.