Thanks Nathan; sounds like a more accurate way of performing the 'pinch test.'

I guess my engine just likes to run RICH. I can never seem to get to the point where you pinch the line and the RPM's stay the same or decrease - it stalls out before it gets there. Every time I pinch it, the RPM's jump up, so I lean it 2 clicks, the RPM's jump again, lean it 2 clicks and it dies. [&o]