Anybody had any experience with the silnylon seconds that are sold by Quest Outfitters and others?

I'm thinking of making a 1-person version of the Ray-Way style tarp & net tent, or maybe some variation, like the Bilgy tent. I made the 2-person version some years ago, but I think I bought the material at The Rain Shed, and they didn't sell seconds.

Also, anyone order from Bearpaw? I see that they have 70d silnylon, which would be good for the floor. The floor of my 2-person net tent, like just about every other tent I've owned, has begun to hydrolyze. No matter how careful I am, dehumidifying, etc., it always seems to happen. So, I'd like to avoid PU coated materials.

The silnylon from thru-hiker.com seems like the premium stuff, if it is, as stated, made from nylon 6,6 (stronger than the more common nylon 6.) And a reasonable price, but still much more than the seconds.
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Always remember that you are absolutely unique, just like everybody else. -Margaret Mead