Mark's
@Crocky28 quality of work is top notch. Both projects he worked on beyond successfull. I don't say this lightly, the 540 rips like mad in the 325 59dl space.
The 2nd project I will post in detail as well as we undergo testing.
Mark as you can see there are alot of sub par builders on the internet, people step outside of the "dirty dozen" and get burned. There are countless top noch arborists that slipped and mentioned a few hickups with their ported saws.
You sir are the first one that I have seen with a 20" 1/4" chain on both Echos.