:-D Hi all, new to your site and enjoying what I've been reading so far. Kind of lost on some of your words for different things, but I'll learn.
For those that find their waterproof jacket letting some wetness in, try campdry, if available. It washes out after a couple of times in the washer and from all I've experienced, as well as read and heard from others that use it, it doesn't affect the fabric and does a good job of stopping the wet from getting through. However, I've only used it on my US issue M65 and German issue moleskin cargo pants, for other materials you may want to test it in a non conspicuous spot.
All life is subject to the laws of Nature, or to be more precise, the laws of our CREATOR.