I have had both on excalibur, and The Pegas clamps are a nicer clamp, less mass and prettier.. But I agree they did not really change my saw's performance or mine... If I had the original clamp on an excalibur I would use then until something went bad. Then I would replace them with the pegas.. clamps. However there are others that feel much stronger about them. And I concede, they are a nicer clamp.