What happens with bad blades?
Poor quality, rusted or improperly sharpened or heated blades are much weaker than properly sharpened blades. Overheating a blade can leave the steel with the same strength as a soup can and affect steel even below the sharpening surface. Weak edges wear down quickly and are prone to breaking off leaving a false edge. Some skate sharpeners try to solve this problem by sharpening with a deeper radius but this compounds the problem. A deeper hollow gives the skater an edge but this leads to the skate being stuck deeper in the ice. This reduces skater control, increases fatigue and increase wear and tear on the players joints possibly shortening their playing career.