I let the customer test the sharpness. when they are speechless or a week later tell me they cut themselves a few times I know I did it right. and really people only need edge pros if they reprofile blades on the regular or have more money than brains.
tyler34 speaks the truth and his sharpening skills speak for its self. If I have a blade that needs anywork done be it sharpened or reprofiled he is the man I turn to.