 So you just need a trim, not a problem. If you press B, T and pick trim wrecked, when you hold shift, control and left click drag, you can cut chunks of your model away and it will automatically fill up the empty space. If you hold space bar when you do this, you'll be able to move the selection before you make the cut. And if there are any areas that you wanna protect, it works pretty well with masking. This is an absolutely amazing tool when you are working with hard surfaces that you need to keep clean and flat. The second trim brush that I use often is in B, T and trim lasso. It does the exact same thing, but instead of a straight line, it cuts in the shape of the lasso. If you cut counterclockwise, it shaves the selected piece off. If you cut clockwise though, it will do the opposite. Hope that helps, Santa's always up. You have a fantastic day and I'll see you around.