The first two cuts were off the roll RSC .325
The third cut was one of Jon's square ground .325 chains. The saws are still totally stock up to this point.
The reason I threw that video up was the show how much difference chain makes. Even though the first videos were done with new Stihl non-safety RSC chain, nearly a 38% improvement in cut speed was found just by swapping the chain.
I enjoy your build threads Randy, but can we get a thread on Jon's chain sharpening