Does anyone know if the DNA Stage 2 cover (e.g. without the snorkel) fits and seals well with the stock paper air filter for the Tenere?

E.g. http://www.e-dnafilters.com/Product.asp?ID=824

The DNA thread on here says it's designed for the DNA filter, but OTR claim it works with the stock filter -- http://www.off-the-road.de/en/XT-660...nere-2008.html

Any insight is much appreciated :-)