Al,
ink jet papers are not self-weeding. They're designed to be used with a contour-cut process using a vinyl cutter. You print the image on the paper with registration marks, cut it out with the plotter, then weed or remove the excess area. then you heat apply the decal to the garment.
We offer a product called
DarkJET that works with all inkjet printers and produces good opacity.
If you want self-weeding paper, you'll need a laser printer like the GO UNO.