This is the offset version of the Black Diamond Camalot X4, which is our top-rated tiny cam. It's just as good overall as the regular X4 but works much better in pin scars and certain weird placements. Why? Skinny heads. They snake their way into all sorts of weird placements. They also just stick to everything - Spiderman sticky. Chris McNamara has yet to pull one in just about any weird El Cap aid climbing placement. And he's tried. They were key to an almost clean speed record on Squeeze Play.
They are ideal for Yosemite and Zion aid climbs, but a set is also nice for any area with weird pods. Which is just about everywhere except Indian Creek. On a typical wall like The Nose, Zodiac or Lurking gear, we recommend 2-3 sets of regular X4's and 1-2 sets of offset X4's.
Only downsides are they are a little heavy, expensive, and easily bent. But those are all part of them being just so skinny and sweet.