I have been running chainsaws for 60 years and have never run a carbide chain. Fire Departments use carbide chains on their rescue chainsaws. Lets use a Stihl 33RD3 20 inch .375 pitch 50 gauge 72 drive links for an example. Here's the question will the carbide chain actually outlast four regular chains if so are they worth $75 and up. The other question is can you hand sharpen them because at some point they will need sharpening? If you have run one just jump in with your pros and cons.