- When I had gotten used to coffee, I went on a trip to Brazil to try many different types of coffee.
a. I think it means, when I was in the state of being into coffee after having gotten used to it, I went to Brazil
b. It describe the state not an action, so "When" is the same meaning as "During".
c. had gotten used is a past version of have gotten used(present perfect)
d. had gotten used is not working as past perfect. So, doesn't need an past event that corresponds with past perfect.
- When I got used to coffee, I went on a trip to Brazil to try many different types of coffee.
e. I think it means, The moment I got used to coffee, I went to Brazil.
f. got used to is an action verb, not a state verb, so "when" is the same meaning as "the moment"
What's the difference between #1 and #2?