Chevy, once again, please stop posting this on this topic, its not character specific again, and what you are looking at are characters whose hurtboxes change form during a double jump animation, as for what you are noticing has zero landing lag, I heavily question your judgement there, but I digress, none of which is character specific or a little part of SAMUS's game, its a little part of everyone's game, so for the 3rd time now, if you care to discuss it, or for me to even go into depth on the topic, make a new thread for it ^_^.I definitely didn't aerial interrupt, this happens somewhat frequently and there is never any landing lag, and I didn't have to input the move twice. I apologize for not being aware that this wasn't character specific, but either way Samus can utilize it, so it's still relevant. This doesn't warrant a new topic as it's only one little thing in her game, which is exactly what this thread is for.
Anyway, today I found out that she'll actually land if her feet touch the ground at any point in the double jump. I believe this is what I was actually experiencing on platforms. So essentially, you have a chance to land once every flip while she's right side up. This most likely works with any character who rotates while jumping. If I'm wrong on any of this please correct me. This is all based on observation.