Shock absorbers on Ebay

Every so often these come up on Ebay:

tinyurl.com/jcku9

Has anyone tried them yet on a heavy bike like the KZ1100?

THese look like the same shocks that Partsmore stocks for the kz1000. When I wrote to them they said:

The shocks we sell are MDI.
They are High Quality and made in Taiwan.
We have sold hundreds for them without any complaints.
I personally use them as well.

However, when I asked about them here (I can't find the link) a couple of people weren't overly happy with them due to fade problems.