Just thought I would get every ones opinions on which chain is preferred. I currently run Oregon on my 6100 and Woodland Pro on my 180. I don't know if it's just me, but the Woodland Pro on the Stihl 180 remains sharp especially compared to the Oregon on the Stihl. I've never used Stihl chain before so no experience there. Is the Woodland Pro better at staying sharp, or is it my imagination?