We talked on Instagram, but for everyone else-
This is right. Femto unlocks the factory ECU, that is included in the service. He's asking how you want the Factory ECU unlocked incase you decide against the clone. Most people will want Option 1, unless they think they might go BM3
The Cloned...
Sorry about your trouble.
This isn't a mass airflow sensor; it's a temperature probe. It doesn't need to sit tight or make a seal. It's just a temp probe, and not even one that's used to measure IATs (that's from the MAP sensor on the chargepipe). Just getting it to sorta seat is more than...
Tuning is fine an dreliable, but for the love of god, don't use an OTS tune and assume the same. Every car is different, so getting a custom tune is paramount.