Whoa, whoa, whoa, Mike, what are you doing? Well, I didn't like how the hull was shaping up. I even went out to look at my sailboat, which has a full keel. I was also a little too aggressive with the sanding. No problem, I used two types of modeling putty, Testors Contour Putty, and Squadron Products Green Putty to fill in the low spots I created. My favorite (from my train modeling and first boat kit) is the Green Putty. It dries relatively fast, adheres well, and sands very easily. Unfortunately, it's solvent based and you'll need to use it in a well ventilated area. I've used both products on the hull and will report back on how each works. I know, I know, it doesn't look like I know what I'm doing. It will all come together in the end.....I hope.