I use that mold a lot and there aren't any heavier hooks it will take without modification. I use the Owner 5313 is a #1, 1/0, 2/0, and 3/0. I only use the heavier hook in the 1/8oz, 1/4, and 3/8oz cavities, I use the #1 for the 1/8oz and for the 1/4oz I use the 1/0 and 2/0, and for the 3/8oz I use a 2/0 and 3/0 in the 5313. The modification isn't hard, just place the hook you want to use in the mold and close it and either strike it with a dead blow hammer or put blocks of wood on each side and close it in a vise, that will make a perfect indentation of the hook. Then take a Dremel with a small grinding bit and remove the little bit of material around the hook eye and then take a small needle file and just widen the slot for the hook shank. It sounds harder than it is because the hook isn't so oversized that you need to make new spots for the hook eye, it just needs to be made a little wider.