At almost two pounds, this is a substantial piece of kit. It is meticulously crafted, fits my iOptron CEM26 mount perfectly, holds my camera tight, and I couldn’t be more impressed with its quality. What I’d love to see as an addition is a spring-loaded release button to hold the ARCA plate from sliding out when the adapter is being loosened- that would be an addition worthy of the exceptional craftsmanship of this piece.