The way it sounds, is that you are pouring with your weedguards in place, is that correct? Also is this a brand new mold or one that has been bought used? The reason I ask is this. When guys buy this mold many don't like the hook that it was meant for and start putting in a Mustad 32886 hook in there. Well the 32886 is a thicker hook, and although it fits, it is very tight. So when you use it all the time the features in the mold slowly start to wear and loosen. With this said, when you go back and put in the 91768 hook in there it is too loose. So what you can do is put some heat tape in the hook shank slot this will tighten up the hook and keep it put. If you need to know how to do this send me a PM with your email and I will send you a pic of what I'm talking about.