1/4" black palm is apparently not laserable. Laser says, “What the bleep is this? I’ma sett it on fire and STILL not make it through.”
Should clarify that this is more “this was a learning experience” than looking for suggestions.
That last super burn is a double pass at max power 100 speed. Upper right is a 3 pass at 130 that still didn’t make it through. You could, conceivably do even more than 3 passes but I think I’ll just… not use this wood for this purpose.