I've always believed that it should be acomplished in the easiest way:
1-run the performance test, using either flow or pressure
2-run a pressure versus flow test. (no performance measurement there)
The two data sets can be used to interpret the results in one way or another.
I think your real question is more about how a reader can use the info. The WB performance graph that pH is using now is pretty nice; if there was a way to do the same thing by overlaying pump curve, that's be interesting, but it wouldn't account for the rad, nor any of the fittings/tubing. Fitting/tubing info is easy to obtain, but the rad is still a big black spot in the WC community but then, the same graph becomes really, really complicated.
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