I have the X.
I was having issues with the cast aluminum getting so packed with ice I never knew if I was going to be able to drill all day or only 1/2 a hole till the aluminum bit froze up and I had to chip the bit to be able to continue drilling for an uncertain amount of time till it happened again.
I contacted CS and they gave me some song and dance anout a new coating… I tried it bit it was just bullshit as expected, no difference. Contacted CS again and they sent me an entirely new auger with the composite bit after I proved destruction of my original auger motor and auger bit.
So far, so good but I am leery about the plastic blade holder bit durability. CS was great for me, have you began that paper trail about your issues? Maybe they will send a new plastic auger bit or even the original style steel ring. If my new plastic bit does not perform I am going to ask for the original steel design and just be done with it.