Andy,
Apologies, I was traveling.

The delta stayed the same, it was a comparision to natural cork. I
was already satisfied with naturals relative to SO2.

Yes, the experiment will be the same, but with less units under test,
at least for Guardian. My brother does not like the fit so we are not
planning on using them. (That said, I have had no issues with them at
all...) Right now most of my 2002 wine is under either Nomacorc or 2
+ 2's. I have liked the 2 + 2's but they do get stiff over time.
Some come out almost as easy as a natural, some seem like I glued them
in. )

I will post the results for sure.

Regards,
Joe

> > That number stayed constant over the 5 years, I did not test the first one >until 3 months.
>
> When you say the number stayed constant over the 5 years, do you mean
> the delta between the test and control groups was contant or the
> measured loss of SO2 was constant? Or both?
>
>
> > I like the look of these Nomacorq'a I'm playing around at now. I have some in > bottle close to a year so I guess it's time to look them over soon.
> >
>
> Same type of experiment with a control group? I hope you'll let us
> know the results.