Multi-Parameter Charts in Load Test Reports

This is more of a LoadComplete Forum question than TestComplete, but for those of you that might be looking to use LoadComplete...



In our experience, a very useful multi-parameter chart is one that shows virtual users, throughput and errors.  Such a chart will clearly show how the number of virtual users affects throughput and the number of generated errors.



Does anyone have thoughts about another combination of parameters that you feel would make a strong candidate for an additional multi-parameter chart to be included in test reports?