The other day at work I was able to do some testing on a couple of popular braided lines. Actually I really wanted to test various knots, but found that the line was breaking before the knots were, so I became more interested in that data. They line was tested using a calibrated 100lb constant force digital gauge. A section of line was taken from a fresh spool and tied to a swivel at each end (approx 12" long). One swivel was clamped to the stationary gauge while the other was clamped to a screw drive motor. The motor was then activated until there was a failure and results recorded. Here are the results: 50lb Power Pro with Palomar Knot 28.7/22.6 (line broke in both samples) 50lb Power Pro with Super-Uni knot 29.5/27.2 (line broke in both samples) 80lb Suffix with Palomar 45.6/47.5 (line broke in both samples) 80lb Suffix with Super-Uni 53.2/44.5 (line broke in both samples) Now on a side note regarding line strength. 50lb Power Pro broke at an average of 27lbs or 54% of advertised 80lb Suffix broke at an average of 47.7lbs or 60% of advertised Based on those numbers I would expect 65lb to break around the 35lb mark. Obviously the sample size should be much larger for better results, but there werent any off the chart numbers which leads me to believe that the numbers above are pretty accurate. Not much to take away from this other than I know for sure that all my Flathead rods will be spooled up with at least 80lb test.