I can answer this from experience, NO adding dead muppets to the DPA's [0896] is not as effective as BAS's [A81WS]. I'll only use DPA's indoors after getting hit with wind noise using them outdoors with muppets.
I concur with DigiGal on this. For some time I used the DPA 0896 screens with Tim's "Dead Muppets" outdoors and the combo appeared to work well against wind noise. The problem that arose, and this is not a knock on Tim as he makes a good product at a great price, is that the fur on the "Muppets" eventually lost their effectiveness as they got a little matted and stiff due to exposure to the elements, age, etc, and no amount of cleaning and combing brought them back to their original effectiveness. I believe the Rycote solution to this in their Windjammers and Softies is to use a proprietary fur that's supple and less prone to matting, but as a result you will pay a premium for it.
Now that I'm using the BAS's there's no question, to me, that they work a little better than the DPA/Muppet combo. The drawback is that the BAS's do seem to attenuate some of the higher frequencies while the DPA's are slightly more transparent; a trade-off for wind resistance.
Somewhat tangential, has anyone compared the BAShures to the Rycote softies?
That's the million-dollar question and I've posed it myself in other threads. Having never used Rycote's Classic Softies or Windjammers, I'm definitely interested to see how they stack up against the BAS's in handling wind and how the high-frequency attenuation compares. Very much looking forward to your comp, tonedeaf.