so here it is... Woodbutcher put together a sweet vid of me cutting a 30" ash trunk at my neighbor's house. Stihl MS660 mag, ported. For this cut, I put the 28" bar on it. The chain is Stihl full skip, relatively sharp, but needs to be professionally sharpened to be at it's peak... Here it is, tell me what ya think... Not too bad, 30 inches of ash in about 30 seconds.