Quote: Come on guys we are talking Load & Performance Testing here not a GUI level record and playback regression testing script.
exactly. and my experience is completely contrary to what you describe. I find that the HTTP API tends to stabilize early in the development cycle (sure there are changes occasionally, but its not an "every" build type thing). true "back-end" changes or UI changes would not affect this. I actually find that GUI/screen level tests tend to be the ones that are very unstable and need to be adjusted very often.