I pull tested this Kevlar using approximately the same methodology described in the Specra test. With the lower rated strength of this line I only tested to 300lbs rather than the 400lbs for the Spectra. I did not test to ultimate break as I wanted to return Bob's sample to him intact if possible. I will do that test with my own sample if we feel this material holds promise.
The stretch characteristics of this line were almost identical to those of the Specta in our tests -- ~1% in our load range. This is pretty much as expected. Spectra does have more 'creep' over time under load, but our duration will be rather short so I don't see that as much of a factor.
With a bit more research into availability and price, we should be able to settle on a line to use in our test mule. 