Couldn’t agree more. The Duro carbide chains aren’t designed for cutting wood.
@Moparmyway experimented with changing the tooth profile and lowering the rakers. We were looking for a work chain for dirty wood. Once Kev got a better tooth/gullet/raker, the teeth snapped off.
They are a rescue chain designed to cut through wood/asphault/nails, etc…. Good product but ain’t gonna satisfy you on wood. I use at times to cut roots.
As stated above, .404 works darn well. Just need the power to pull it. I run .404RM 28” on my ported 500i as my primary cutting saw. My cutting area has RCA as a base, so it’s rough on chains.