I've had these logs a little over 3 years. The mantels I milled out of 2 logs from the same tree still have the bark on them, and it's tight. These have been laying in the grass next to the woods. All of the bark and sap wood have started to rot. First cut knocking the cap off was just about 2 minutes. The second cut, much wider, was only about 3 minutes. Saw is a 660 with 36 inch bar. Chain is Stihl Yellow Box 33RS. No skip, no ripping grind. Pretty smooth cut.