Sanded Curve in Booster Cover Top

When I routed the curve in the booster cover top on Sunday, I used a router bit with a 0.500" radius. The blueprints call for a 0.625" radius (depending on which version of the blueprints you refer to). I taped many layers of masking tape on a pipe with a 0.500" radius, increasing the radius to about 0.625", and started sanding away. A short time later, the curve was to size.