I'm trying to learn how to bluff catch using mdf and I wanted to check I'm understanding it correctly.

This is my understanding:

1. You count the number of value hands the opponent has to bet

2. You then check the pot odds to see how many bluffs he needs to balance these value hands.

3. If I think he has more bluffs than his value hands and pots odds allow I can call, if he has less I fold.

Is this correct??