I recently discovered that my Roland vinyl cutter is terrible at cutting small concentric circles. It was fairly inexpensive and has no calibration feature so this is apparently a "feature" that I have to live with unless I buy a new cutter.

I know some people here are using a Graphtec...care to share any positive or negative experiences? Is it capable of fine work?

One the same topic, is there a brand of adhesive vinyl that you'd recommend? The roll I have worked great when it was new, but the adhesive doesn't seem to be too keen on sticking to the vinyl itself anymore. I usually weed on the frame and it's leaving behind adhesive which interferes with the oxidization process and allows leaks under the edges.