Plotting Stability Circles on a Smith Chart

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http://forum.allaboutcircuits.com – I need to plot a few stability circles on a smith chart to make sure this basic RF amp example design will be stable. The problem is, the center of one of the circles is WAY off the smith chart, by 10 units actually. If I wanted to graph it how I know, I would need a meter stick. I'm thinking of printing a smaller version a the smith chart to accommodate but I think I would lose a lot of accuracy. The radius is 10.3 (or something near there) so it puts part of the circle back on the chart. Is there a better way to plot the circle? My current method, let me explain, is to take the reflection co (Embedded)