Nice article I found below...if posted already..sorry..but that was one HEAVY racquet Lendl used...considering the stock was 388 Grams? I just got mine in , prsitine, Adidas GTX Pro T, that will load up with Lead here shortly...and see the results
http://www.tcpalm.com/news/2009/feb/22/no-headline---200902211948-22tray/
http://www.tcpalm.com/news/2009/feb/22/no-headline---200902211948-22tray/