Marcus and Chris,
I really like the CS42 for bombers but about a year ago a friend noticed that the hook changed. The new ones are shaped a bit different and have a more squarish wire and a deep gouged barb. They break very easily. If I am not mistaken Partridge was bought by Mustad. Might have something to do with it. It's a shame because the hook was great. Try to find older packages if you can.