Lama Cargo Hook

I have wanted to design a scale like cargo hook for sometime. Winter weather gave me the time. The system was tested with a static load of 17.5 pounds as well as a frame test of over 30 pounds. The system is only as strong is it weakest link, however it has not presented itself. Fusion360, Formlabs 4 using Black V5 resin. 1.5mm stranded cable with compression eyelets. Both cargo hooks, upper and lower, are spring loaded allowing the user to snap back the hook into position. The pin used to latch the hook is stainless steel and rolls/compresses the spring until a hole in the hook aligns itself and allows acceptance, thus locking the hook in place. I used a bicycle shift cable to activate the upper hook.