Noticed an interesting thing when running keychains today. Some of my art is converted to images when exporting from Corel Draw, mainly because of how our old rdworks handled complex images and sheets of the same thing. These were generated with transparent backgrounds, and when actually running, the laser does all the image, and then goes back to the bottom of the tire (where there is overlap inimage field, but not image content) and scans it twice.
Here are the settings being used, I find these to get they done faster when they run as individuals, instead of scanning the whole sheet.
And how they are turning out in practice. Notice the bottom of the tire is darker and not as clear.