I'll get straight to it. There has been 4 out of 70 clutches so far that we have had to address a problem with. The buttons, as we call them, on the spider part of the clutches have been slipping out. We have talked with the manufactured and they ensured us that they will fix the problem immediately. Other than those 4, we have had 0 complaints. These clutches have been in the making for 2 years and we will continue to make improvements as we sell them to our customers. Thank you guys for your business and we look forward to bring you more products that we claim to be "the best on the planet."