I am making corbels for a mantle and have hit a small roadblock. I need to sand the curved face "to the line" and I'm not sure how to approach this. The corbels are 6" thick. I have an oscillating spindle/belt sander but the stock is too big to use this effectively (in my opinion). I thought about using a sanding belt on my bandsaw but have never used one. How well do they work? I would think they would tend to round corners. What other way could I approach this to get both corbels uniform?