When I finally discarded my 20 oz goretex 'bombproof' pullover several years ago, I tried the Marmot 'precip' products and several others before settling on a Patagonia Specter pullover, which I found less condensation prone than the precip products, not to mention other porous unrethane coated products. This may be because it has a better coating, or better DWR, or both. It also slips easily with a raincap and trowel into a small top pocket on my pack where I can get at it quickly, something the bomber could never do. I tried a "2.5" layer product from Beans because it came in a size long and provided more coverage below the belt. It wetted out after just a couple days in the rain in the Rawahs, left me 'all wet,' and I sent it back. One thing about Beans – they have a very customer friendly return policy.
The Specter has weathered many days of rain with no sign of wetting out, so seems to have a much better 'DWR' coating than many other brands, and it weighs only around 8 oz. for my size XL. The condenation is no worse than the Goretex bomber, and I do not get wet from condensation when hiking here in the Northeast, or at higher altitudes in the Rockies (I hike only at a moderate pace).
If I really thought that the new Marmot products approached the performance of E-vent, as has been claimed, and would not wet out and thus become worthless, I would jump at these newer products, even though there appears to be no significant weight savings over the Specter.
But are they really significantly better? Taking the comments on this and other threads as a whole, it really doesn't sound like it. If anyone who has tried several of these products feels otherwise, it would be helpful to hear from you.
Thanks.
Sam Farrington, Chocorua NH