Full aptness is the most important concept in performance-based virtue epistemology. The structure of full aptness, in epistemology and elsewhere, is bilevelled. At the first level, we evaluate beliefs, like performances, on the basis of whether they are successful, competent, and apt—viz successful because competent. But the fact that aptness itself can be fragile—as it is when an apt performance could easily have been inapt—points to a higher zone of quality beyond mere aptness. To break in to this zone, one must not merely perform aptly but also in doing so safeguard in skilled ways against certain risks to inaptness. But how must this be done, exactly? This paper has two central aims. First, I challenge the credentials of mainstream thi...