Laser etching a filled font

Hello! Hopefully someone can help me understand this better. I am unable to accomplish a filled letter with Vcarve Pro and my Jtech 2.8W laser. I am sure its something small and just flying over my head lol. If I use quick engrave it allows for outline and fill. However, this is the option to fill the letter by cross hatching, I would like the whole inside of the letter to be removed. Anyone got any suggestions? Thanks!

Also, I am assuming the spindle speed controls the power of the laser. What value do you use for 100%?