Settings:
1000 speed
100 power
225 LPI
.25 IN
1 pass
I also left the try in since it fit under the laser box fine and made sure to set the focus height the thickness of the wood. It was actually JUST under a quarter so I rounded up.
This turned out awesome, but I should have put a masking tape over it to prevent smoke damaging. I also like to use tape in case I want to paint the engraving before I peel off the masking.