Remember:
Don’t be too concerned about the ‘whole script’. Instead, be concerned with YOU. The main reason for using micro-loops is about you and what the optimal amount of content is for you at this time.
You are the most important ingredient in your subliminals experience.
Feed protein to an eagle and its body makes feathers. Feed protein to a rhinoceros and it makes thick hide and a horn.
The same building block in both cases (protein), but it contributes to very different building projects in each case.
Listening to 15 seconds is still going to help your mind with its building projects. And then, yes; when you can handle more, you may add more. And that will help you to build even more. But your identity and your growth do not come from the subliminals. Rather, the sub helps you with the identity and growth that are coming from you.
You can and will grow without the subs. But with them, your growth is even more empowered. Think of them like different kinds of plant food.