7 boosts were actually incredibly easy to get. The room before the room I lost on had carrots running along the bottom and the top, but I didn't need to use the ones on the top for anything... I could just drop down and then use the next bottom-boost to go back up. So all the top boosts turned into extra boosts.
Is that not the expected strategy for that level...?
Well, in this room the average player will use two boosts to get to the top of the platforms and thus will only collect one or two extra boosts in that room.
There’s also a trick where you jump and then use your boost, which will propel you up much higher (this is not really intended to be used, but kind of makes sense), thus using less boosts in all places that require more than one boost.
