Anyone had any luck with "retr0bright"?

[chris155@gmail.com]

I'm sure a few folks have seen it, as it was posted on a2central:
http://retr0bright.wikispaces.com/

I've tried this in a few ways with some of my old yellowed IIGS and //
e platinum cases, to no avail - at least with the ingredients I've
found at most stores here in the US.

The first pitfall I think is the fact that the highest concentration
H2O2 i've been able to find is 3% - your typical drugstore variety,
which probably isn't strong enough.

Second (and the only really other ingredient besides UV light) is the
"Oxy" laundry booster.  The only thing I've been able to find
searching multiple stores has been the ubiquitous "OxiClean" laundry
booster, which apparently is Sodium Perchlorate, not TAED as stated on
the wiki.

As you might have guessed, after two tries in varying concentrations,
my worst cases are as yellow as ever.

Has anyone had any luck doing this with easily obtained ingredients?