Teslarati describes a 15-mile round trip as “really good” and on par with recent FSD versions, but says it wasn't enough time to judge the update's strengths and weaknesses. At the gym, Teslarati says the system didn't pull far enough forward before backing into a space, requiring a shift back into drive to avoid another car. It called the parking performance fine but wanted a single-attempt maneuver. At home, the system entered the assigned parking spot—something Teslarati says happened about 50% of the time on v14.3.8 and hopes will happen more often with v14.3.9.