Educational researchers have conducted very few studies on the subjective experiences of both trained and self-taught auto mechanics (Barber, 2003, 2004; Nelsen, 1997, 2010). Further, no present studies explore the subjective experience of the automotive instructor as he or she experiences uncertainty in the automotive lab. This study addresses a gap in the current literature on career/technical instructor development. For this study, data were gathered by video recording automotive laboratory activities at three Midwestern automotive programs. Interpersonal Process Recall (IPR) interviews were conducted with automotive instructors as they observed themselves navigating the lab environment. Data from the IPR interviews were analyzed using emergent thematic analysis. The research revealed that most instructors in this study were aware, after reflection, of the reasoning behind many of the intuitive and improvisational behaviors, and had an awareness of the nuances of skill assessment the importance of modeling behavior. This study also identified "transfer of artistry" as a concept of advanced skill attainment in automotive subjects. Transfer of artistry is the result of an instructor's ability to manage several paradigms of the laboratory experience at once, to create the appropriate conditions for a student to develop the cognitive, spatial, and tactile skills necessary for performing advanced automotive diagnostics and repair. This dissertation is available in open access at AURA: Antioch University Repository and Archive, http://aura.antioch.edu/ and OhioLINK ETD Center, https://etd.ohiolink.edu/. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]