I had a great experience with AV Science and Stewart that I wanted to share.
I talked to @Mike Garrett
at AV Science about two months ago while shopping for a new screen, and he recommended the Cima FF with Neve material for my dark home theater setup. Before, I was using an Elite Cinegrey which I chose at the time because I do often use the HT while keeping dim ambient light on (but walls are blacked out and no direct ambient light reaches the screen). Mike insisted that a white screen like the Neve should still work great in my particular setup.
I received the Cima Neve and I was pleased with the results -- colors popped like never before and bright whites could get blinding at times but resulted in a much more realistic look. Blacks were still excellent with my JVC X790R, so my overall contrast improved considerably. Sharpness was incredible and allowed me to focus my projector better than on my previous screen. I once saw a comment that said upgrading to the Cima Neve felt like updating one's glasses prescription, which sounded funny to me at the time, but I couldn't agree more.
I did notice what I would call horizontal "screen ripples" at the time, that appeared most prominently in very bright panning shots, but I wasn't sure if these would go away with time or not. I did double check screen tension and it seemed properly tensioned everywhere from what I could tell. One month later, I had Chad B over to do a calibration with the new Cima Neve screen, which showed off how good the screen is even more. But the screen ripples were still there, so Chad suggested I ask my screen dealer about it.
I reached out to Mike again, sent him some photos of the screen ripples, and he suggested that I use lens shift to confirm that the ripples were coming from the screen rather than the projector. With lens shift I was able to confirm that the screen was the issue, so Mike forwarded my issue to Stewart, and they ended up deciding to send me an ST130 G4 fabric replacement as a one-time accommodation. Great customer service!
I just installed the ST130 G4 replacement fabric yesterday, and it's absolutely perfect. No screen ripples at all. I was concerned about changing screen materials after Chad had already calibrated against the Neve, but from my subjective viewing tests, at least, I was relieved to see that there were no noticeable color or gamma shifts at all. It just looks slightly better than the Neve was in every way that I could tell, even though the calibration was done against the Neve and not the ST130. I know people say the Neve and ST130 are very close fabrics and my experience confirms that for me. But despite how close they are, the difference was enormous for me, because the screen ripples are finally gone. The result is just stunning. It looks so good I am constantly distracted from actually watching the movie I'm trying to watch.
Thanks AV Science, Mike, and Stewart! I can't imagine ever needing to buy another HT screen. But I know where I'll be telling my friends to shop.