Existing ILI solutions for detecting stress corrosion cracking (SCC) and singular axial cracking in gas transmission pipelines continue to exhibit limitations in order to reliably detect, identify and size such threats, despite the availability of inline inspection technologies for over a decade. These performance constraints can lead to unnecessary and costly mitigation efforts and, more critically, contribute to underestimate the pipeline's risk profile. This paper introduces a novel inspection technology for gas pipelines and describes the rigorous design of experiments required to establish a comprehensive performance specification in accordance with API 1163. This discussion includes the development of a suitable testing infrastructure, key boundary conditions, and inherent limitations. Finally, a detailed statistical evaluation based on pump tests is presented, covering Probability of Detection (POD), Probability of Identification (POI), Probability of False Reporting (POFR), and sizing accuracy, each aligned with API 1163 methodology. The presentation concludes with a forward-looking perspective on the upcoming validation phase, which will be conducted in an operational gas pipeline managed by NDT Global.