"There is a saying about surgeons, meant as a reproof: 'Sometimes wrong; never in doubt.' But this seemed to me their strength. Each day surgeons are faced with uncertainties. Information is inadequate; the science is ambiguous; one's knowledge and abilities are never perfect." from Atul Gawande, Complications: A Surgeon's Notes on an Imperfect Science.
Friends, we must not hesitate with such vital matters on the line. Indecision is for tentative Hamlets. Uncertainties be damned. Be bold; go and make the cut.