The problem is sometimes you end up side-by-side with the last car you get to, and there isn't enough space to move back into something approaching primary because vehicles are too close nose-to-tail.
If you can't see a gap at least a few car lengths ahead in this situation, you shouldn't be proceeding with your overtake and you should be waiting behind. IMO.
The problem is sometimes you end up side-by-side with the last car you get to, and there isn't enough space to move back into something approaching primary because vehicles are too close nose-to-tail.