Velociraptor 600GB more agile

[pointertovoid]

Hello nice people!

The second generation of WD's Velociraptors, with 450GB and 600GB capacity, have more agile arms - though it's not advertised everywhere, their track-to-track hop is 1/3 faster as are short strokes.

Nevertheless, neither noise nor consumption have increased since the first generation with 300GB capacity. This is a hint to a lighter arm.

I couldn't read an explanation for this improvement. Can you?

I had suggested electroforming to produce lighter arms of nickel, some µm thin, there:

http://saposjoint.net/Forum/viewtopic.php?f=66&t=2160

and sent this idea to the manufacturers of hard disk drives, plus some more ideas, like the two-armed hard disk

http://saposjoint.net/Forum/viewtopic.php?f=66&t=1793

I'd be happy if at least WD has used this idea of electroforming.

Thanks!