Here's what my "king of saws" did yesterday (with a little help from me).
Try this with your 455 sappy...
Only the stack in the foreground - the rest was other days... Western Bigleaf maple (Acer Macrophyllum). All 10 feet long and sawn to 5/4. Some are 20 inches wide.
Look at this cool color - This is maple after all, not walnut. It's not uncommon to see this type of maple with spalting, but this is a real sound piece of wood. Can't wait for it to dry in a year or two.
And the scrap goes to the wood pile...