This essay stems from a controversial recommendation present in the 2022 European Guidelines which indicated the appropriateness of considering an implantable cardioverter defibrillator (ICD) implant even for still asymptomatic long QT syndrome (LQTS) patients deemed to be at high risk by the 1-2-3 LQTS score based on QTc and genotype calculated prior to the institution of therapy. As 15 years ago, we also had proposed, but never used, a risk score called M-FACT to identify patients at high risk of an appropriate ICD shock, we felt the responsibility of assessing what would have happened to our patients if we had rigorously used that score. We performed a study recently published in the