I’ve been to a conference and sat in on a class that Stahl’s put on about this. There are two methods to do this. One is to do a vector “KISS Cut” of the design you are trying to do, leaving the backing intact, then you would need to weed the vinyl, just like you would if you used a cutter. However, you can do more intricate cutting than a regular cutter. The other is if you are doing a very detailed design, you can raster engrave out the parts that you don’t want to transfer to the shirt, again, leaving the backing intact. This eliminates the need to weed the design, but also takes longer. As with everything, there are trade offs with the two methods, or you can combine them together, vector cut some of the design, raster other parts out, etc.