Trying to understand Silpoly while choosing new tarp

[Singingcrowsings]

Hi,

So I am in touch with vendors about a new tarp, but I haven't bought a tarp in almost ten years, and there are new-to-me materials out there, namely Silpoly.

I loved my silnylon MacCat Standard tarp, but I lost it. It was a nice light grey that was stealthy in any season, and, for the most part, stayed taut. The only thing I didn't like was the moments my shoulder brushed against it and got wet during a rain storm. Sadly, those light greys don't seem to be available anymore.

As far as the fabrics, I have liked what I read about silpoly, BUT in almost every video I see with it, the material doesn't pull taut at all like silnylon, it's billowing in the slightest breeze. The edges seem taught, but not the inner material. Is this normal? Or are people somehow doing this on purpose? Are owners happy with this phenomenon?

For me a taut tarp is security, so this is disconcerting for me and causing me to hold back in my purchase.

Any advice or insights?