BobL I have a problem/question I lowered my RA to 6* my TPFA is 25* My chain no longer makes a wide enough cut and and drags so much it overheats the chain in two cuts 18" burr oak Stalled the saw to. Thought it was cutting too aggressive until I tried to pull out and it stalled in open cut. I was cutting cookies so their were no external forces on the log. What could cause this? I've learned a lot about sharpening from your post but the more I learn the less I seem to know!