Hey Ahren. Welcome. Since I am in the retail business I don't think I would have handled you quite the same way as you got handled! I am not familiar with the language of Spam though, but I can see where those guys were coming from, but I was surprised at the way they came at you. There are some tendencies here that border on the unhealthy. But, since you have an engineering mind, you may be able to help over in the Cuben thread!
There is a the question of whether laminated fabrics should be tested differently that coated fabrics for HH, especially when the laminates may not be as flexible as a coating.
Something that has just come to me though, is that I remember when Kelty started putting the waterproof coatings on the exterior of their tent flies. I'm not sure how that episode of history played out, but I'm wondering if it may be time to develope exterior coatings with rainwear. UV inhibitors have come a long way, as long as they are healthy for the environement. I wonder how the HH numbers would read. Maybe Richard could do tests on coated fabrics to see if we get a different reading – depending on which side is tested. Of course, exterior coatings are more vulnerable to outside wear, they certainly get exposed to internal abrasion as well, as well as all that nasty body stuff. Silcoat of course has a coating more or less on both sides. Anyway, I think this could be an interesting subject since there is so much discussion about DWRs, wetting out and etc.
On another subject, so I don't have to make another post, it says in the pretext to the Gear Forums this; "gear that's overrated by lying manufacturers"
Although I'm sure BPL does not intend to mean that all manufacturers lie, the grammar reads as thought they do. I tend to stradle the line between manufacturers and consumers and can take jabs at both, but maybe we can edit what that statement says just a little.