After seeing posts about the Hoodman Eye Cups, I visited their website and did some browsing. Has anyone used their "Steel" CFExpress cards and/or their CFExpress card reader? I'm more interested in the reader than the cards, but am curious as to whether or not anyone has feedback. Their cards are a bit slower and only modestly cheaper than Delkin Black from B and H, so am not likely to purchase, but it's always good to have comparative data.