You know, in all my toons (which is 5 of my 6) who are maxed in sell, I NEVER missed out on merits, and I always push the buttons. What I do is run to the very edge of the button, then back up while turning toward the door, then forward while turning the rest of the way through the door. Works every time for me. I used to get teased for "driving" my toon intstead of running her, but now may be a good time to have a conversation about this. Especially the East silo, it is very possible to run right away, open that door, push the button and run back out the door before it closes. And now that you get drawn in to the batlte on the other side of the Center door, you can get in the lineup before the other toons can pick a gag.