My original (11 year old) paddles broke off about 6 months ago. I bought a 3 pack of replacement paddles from Whirlpool and installed them. I did not screw them in because the originals weren't screwed in. But alas, after 4 months, they all broke and needed to be replaced again, so I bought another 3 pack. This time I screwed them in. But now 6 weeks later, I have had 2 more break off and now I'm left wondering what is wrong with my machine, or if it is faulty paddles? I am not washing rocks, and actually it's the loads that are smaller than usual that the paddles are breaking off during. Please help! Thank you :)