I tend to use slash and yaoi interchangeably, and I don’t use shonen ai. Yes, I do know that the meanings are subtly different, but they’re also subtly different depending on who you’re talking too, and I don’t care. I do tend to use yuri instead of femslash, but I doubt that’ll come up much considering the tragic scarcity of well written yuri. (Though if anyone knows any good Winry/Sciezka yuri, I will love you forever if you tell me).