How did this thread turn into a poll? The umpires on this board would not waste their time discussing this mechanic unless they were absolutely sure about it. I believe these missed base mechanics are also stated in the BRD and J/R's 100 Knotty Problems.
Some important things to note about a missed base and its proper appeal.
1) One mechanic aplies to 1B.
2) A different mechanic exists for HP.
3) 2B or 3B situations must also be recognized (treated differently than 1B and HP).
4) Read MLB, J/R, and BRD caseplays for understanding of missed base mechanics.
5) Read older threads on this website for similar explanations taken directly from JEA.
Search revealed a)
Mechanics At First Base, b)
Mechanics Question
6) Venture into similar discusions on other umpire boards {eteamz, abua, nfhs and eumpire}.