:) Hi, I towed the same trailer with the same hitch with the same tow vehicle for over ten years. And about two more years with a new tow vehicle. I have the Equal-I-zer brand hitch. (4 point) In this time I have never replaced a single part of this hitch. No problems and very easy to use.
I have friends who have to Dual Cam and they work great. Not as easy as the Equal-I-zer to use. All of the Dual Cam users told me that it's a real pain to get the Cams centered correctly. And if done wrong, they break the Cam adjusters.