The only issue I'm seeing with the re-designed unit is that they clearly have a problem that was PREVIOUSLY FIXED with the earlier models.
I did a few tests myself on an Xbox manufactured 08/08/2007, doing the same orientation change while a DVD was spinning in the tray and nothing happened. The second generation (Zephyr) units on used DVD drives with rubber bumper guards on the lens assembly, preventing the lens to disc contact that causes the radial scratches.
As far as I know, the only 360s that had the scratch problem were the original Xenon units.
So if someone has a Falcon or a Jasper that's scratched discs because they moved the console severely (not talking about jumping up and down near the entertainment console here: I mean flip the console over or give it a 90 degree vertical to horizontal turn) then it could be said that the 360 ALWAYS had this problem, but I don't think this is the case and MS may have taken a step backwards with the redesigned units in the OEM DVD drives they sourced.
