Sharpen blades while on mower. Cub Cadet 760-ES

Question here about how feasible it is to sharpen my twin blades while still attached to the mower. Cub Cadet 760-ES twin-blades. Such a pain in the ass to remove & sharpen, so wondering if tilting mower to one side and sharpening them in place is possible. Would only try this if oil is drained and gas is drained or minimal. Bad idea? Possible?
Thanks!