EAP86
I doubt whether that process can be recreated in the medium term.
Or long term, as it requires will. There is no longer a natural recruitment ground, as our workshops have been privatised. This contributes to the fact that most CS 'engineer' recruits don't realise they're skipping five grades. That's a lot of learning and experience missing. While they get on with their job, neither they nor their bosses understand what is NOT being done.