I received my SI2 replacement today. It was the second replacement I requested and came with the felt lining above the camera. It's rubberized.
The result? Seidio has nailed it now! This is exactly what I wanted when I ordered this case. It's snug and doesn't move/jiggle.
As to stories about expansion and rubber, physically expansion's possible. In fact, most materials have some degree of expansion/contraction. However, it's pretty unlikely that it would be to a degree that impacts performance or fit. I, live in the Northeast as well and wouldn't at all be afraid that our temps would impact the SI2. In fact, the temps here are more likely to impact the Evo itself more than the case. Seidio's in Houston so I'm sure they have even more heat and humidity than we do in the NE even though it doesn't seem possible right now during this heatwave.
I had both the original SI2, a replacement without felt not extending above camera, and now the full-spec SI2. None scratched my Evo (or my wife's), and Seidio has gone well past most other companies I've ever dealt with to make sure we got great customer service and the product we purchased. It took a few tries, but I'd give Seidio my recommendation because they got it right and reached out to me to get it right. They even responded to an issue I had with the Ultimate Screen Guard the same way.
I posted my concerns on this site and privately, and Seidio responded quickly and without additional cost to me. That's how it should be done, and I laud them. And as far as cases for Evo, they're the only one I would recommend. Some on this forum may not have had the positive experience I have, but I have great cases from a respectable Houston-based company.
I would buy from them again. In fact, if they come up with another color that I really like (chocolate) or the right two-tone scheme with clip in the Active Case, I just might buy from them again.
This is good news. I am waiting on my RMA replacement and would completely agree with your sentiments regarding this fine company. I'm also happy to hear that yours had the felt above the camera cutout, was this on the black model? I'm hoping that's a permanent change Seidio made to all the Innocase models.