I think T'Lyn would act as an unconventional mentor to Ma'jel. Remember that T'Lyn was sent to Starfleet in the first place because her Vulcan superiors found her too rebellious. Ma'jel seems a bit unconventional as well, with her funky hair (unless white tips like that are natural in some Vulcans), her occasional slight smile, and her willingness to break the rules.I would love to see a meeting between Ma'jel and T'lyn. I wonder what that kind of Vulcan conversation would be like.