Does anyone know the specs on Nalbandian's racquet. I'm pretty sure he's using a Yonex RDX 500 (or a paintjob of it), but what are the specs? I've seen pictures of him using the frame with lead tape added to it, so it's probably not a paintjob. But then again, he was using a Prince Triple Threat Graphite which has a cross-bar, so he's gone through a big racquet change. How about the strings and their tension? I know he uses Yonex Super Grap Overgrip. Thanks.