Greener
ArboristSite Operative
Can a fast spinning chain cut all the way through a steel core flipline?
Absolutely it can. Always use 2 points of attachment, and have them in different locations. When you're blocking down a spar, setting them far apart isn't easy but you can set you flip line high and double wrap your rope at least a foot below. It may seem like a hassle, but get in the routine of doing it all the time and it's no slower. You've only got to cut your rope or flipline once and you're dead if you use 1 attachment point.
Shaun
Here is a video showing a wirecore flipline being cut by a 200T/020T:
chainsaw test on wirecore flipline - YouTube