I went 135 straight to NK. Definitely possible. If you secure an interview or MTC they focus on training failures, TMAAT, and weigh “Why Spirit?” heavily. I have a friend starting class next week that is coming from 135 but he was an LCA and had prior 121 from when he had less than 1,500 hours; when the ATP law went into effect he and others like him got the axe.

I think they’ve fixed it recently but the application process/portal used to be pretty pretty clunky but keep it updated just like you would any of the others nevertheless. Good luck.