I have tested the set of Hard Disks, and all are OK
One of them has SSW 7.1 on it, and the other has lot of Mac icons (most of them are from the X-men comics... being myself a fan of Wolverine, this was a logic choice for the new HD icon)
Today was a very hot day here in France, and a very sunny day, i removed the front panel of the hard disk and set a Retrobrite bath.
Just used oxy crystals this time (didn't used hydrogen Peroxyde for a change) and get more or less the same result.
As you can see from the picture above the panel was pretty yellow, now is nice and white.
A small modification was made also, two LED are present, but only one of them was wired (the activity was not) but the HD was able to support this

- Only the power LED is connected
Both wires were connected, and hot glue used to prevent any short.

- connector is present and even another LED
Was tested and working great !