Hi Steve. This might be the time to maybe not go with the direct conversion. If you go to mustad's site, you may be able to get a picture of the hook and see if the length of the new is that much more than the old. If so, consider one of the other new Signatures to take its place. I'm in the process of changing over as well, but I think I'm going to stick with Mustad as my primary hook. I will change brands if I think I need a hook shape not available from Mustad, but I'm not worried about Mustad's quality.