(a) Same as Figure 1 for AY Cam. (b) Acceptable fits for ﹩{\alpha }_{\mathrm{MLT}}﹩ set to the CB2018 value ﹩{{\alpha }_{\mathrm{MLT}}}_{\odot }=1.60﹩ (dots), or to a value of 1.80 near our solar-calibrated mixing length (squares). Open circles in both panels mark solutions with ﹩{f}_{\mathrm{ov}}﹩ within the upper limit established by Roxburgh (1992) for stars of this mass (see the Appendix).