Less than two minutes...We have been tweaking around the serializer (getting rid of duplicate IO work) and writing, storing 100,000 tests takes less than 2 minutes. The development costs aren't why they used to be...A more realistic approach to this feature can be: there is a method that takes a matrix and returns a modified version of it. Given the nature of matrices, a user could create a "base" test batch with a baseline matrix then modify the individual matrices with minimum effort.Labels: .Net_compact, .Net_desktop, add-in, efeKctive, gui_testing, QA_Automation, Visual_Unit_Testing