Does anyone know what frame Mileena lowers her hurtbox during the (regular, non-ex) roll? I know the roll first *hits* on frame 8, but I'm pretty sure Mileena lowers her hurtbox before that. Noticed this when trying to do Reptile f412 ex invis into another f412. Ex invis is +5, and it should be really easy to stuff an 8 frame attack with Reptile f4 (9 frame startup), but it's way harder than stuffing anything else including KL's spin or Cassie's flip.
Unless I randomly have some sort of block with Mileena and only mess up vs her, I think she lowers her hitbox on frame 5 or 6, and it's a 1 or 2 frame link for Reptile to stuff roll after ex invis.