Telinga Stereo-DAT compared with Twin Science?

["David Ellsworth" davidells]

When I bought my Telinga, I chose the stereo version because I think
stereo adds depth and immersion to a recording, especially if it is
combined with video. And, if I'm monitoring the recording, it allows
me some vestige of directionality in my hearing, so I can still have
some idea whether a bird off to the side is to my left or my right.
I'm pleased with it in these regards.

However, I am left to wonder if the Twin Science does a better job of
separating the subject from the background, i.e. if one of its
microphones has a higher "subject pickup" to "background pickup"
ratio, compared to the Stereo-DAT. Does anyone know? Has anyone
directly compared them in a noisy setting? And why is it called "Twin
Science", anyhow? (The "twin" is obvious, but why "science"?)