I am not 100% sure beyond the d30 foam in the 7092. That being said, I don’t think the d30 does anything. I have the 6052 elbows that have it, and it is so thin and hard I honestly wish it wasn’t there. I have taken a few falls where I landed right on the d30. Ouch. I wish there was just some normal foam instead. I have seen some of the newer ccm stuff has d30 lite, which actually seemed more squishy and padded than what is in mine, so maybe the new stuff is better. But my opinion of d30 is that it looks and sounds cool, and doesn’t do much beyond that.
Pretty happy with the straps and the fit though. They have held up just fine