The three methods to unlock a Hyde.
There are three methods to unlock a Hyde: a traumatic event, a chemical drug, and hypnosis. Laurel uses two of the three to master Tyler (a traumatic event via torture and drugging him), while Fran uses only one of the three, hypnosis, to master Tyler.
It is hard to tell which method is the strongest to unlock a Hyde and which one is the weakest. At first, I was going to rule out hypnosis as the weakest one to master a Hyde, becuase Tyler does eventually turn on his mother, but I don't think so anymore becuase you gotta remember, Fran is Tyler's second master, and that got me thinking as well: the more masters you had as a Hyde, the weaker the master bond becomes?
Which method actually got Tyler to Hyde out? We don't know how long Tyler was tortured and drugged. It could've been weeks or a whole month. Was it the torture that got him to break, or the drugs?
As we find out about Fran, the way she was unlocked was by being hit in the face by her father; that is her traumatic event, and it is heavily implied that she immediately Hyde out right after, so a traumatic event can vary from each person, as expected.
At first, did Laurel only use one of the three methods to unlock Tyler? And when she realized it wasn't working, she combined both torture and drugging him to get him Hyde Out faster?