Hi all, Been on the "Creek" for a while now, but this is my first post. I am still fairly new to the laser, but have managed to come up with some projects that turned out very nicely.....mostly due to the help and advice given in this Forum. I'm getting ready to start playing with glass mirrors. I know that there have been several related posts (I think I've read them all), but what I am looking for is just a starting point for settings. I have an Epilog Mini 18 and plan to engrave from the back side. Any advice on where to start in terms of power/speed/dpi? Thanks!