This isn't aimed personally at the OP, it's a scenario.
You go to college and do your 2330 L2, followed by the L3.
Your mates and some college lecturers tell you - 'you're qualified to the 17th, you don't have to do the 2382.
You go out into the big wide world and start sparkying.
A week later you're on 'talk.electricianforum' asking a daft, 'Regs' related question.
You get bombarded by the 'old hands' on here, demanding to know if you're competent to do the work you're undertaking.
And all because you didn't take the 2382.
In all seriousness, and I swear this, I learnt about 20% of what I know about the 'Regs' during my electrical training, and the other 80% on the 2382 course and from using the 'Regs' in practise - you do the maths!!
They might be teaching you to the 17th Edition, but 2330 is the 'foundation' knowledge that you need to be a spark, it doesn't cover half the stuff that's covered in the 'Regs', so you do need to do the course.......whether you choose the short version or the full is your decision, only you know how well you actually know your way around the book.
Mind you, this is only my opinion, others may think differently.