Yeah, the lightweight J-frames are tough to shoot accurately. The weight and terrible trigger make it tough. Will I buy a new Cobra? Maybe. I need to check one out personally. In the meantime, when I carry a revolver, it's my Colt Agent which has a trigger much better than any J-frame I've shot. I shoot soft loads with it at the range but put +P Gold Dots in it for carry. That's not ideal which is why I would consider the new Cobra.
As to why the name "Cobra" instead of "Detective Special" --- marketing. A Cobra sounds "sexier" than a Detective Special.
As to why the name "Cobra" instead of "Detective Special" --- marketing. A Cobra sounds "sexier" than a Detective Special.