Once I’d passed my medical/theory/CPC I was itching to do the driver training/test ASAP since I was so fed up with my old job.
The training provider was very busy at the time and ended up quoting me a course waiting time of around 2 months. I didn’t want to wait that long so I told them I’d be flexible if they had any odd days here and there. I ended up doing the 4 days training over the following 3 weeks and I don’t think splitting the course up like that had a negative effect.
For comparison I did my class 2 over 3 weeks and did my class 1 as a 4 day block course. I failed both tests first time and passed both tests the second time around which leads me to believe there isn’t much difference.
So if you’re worried about waiting times you could be flexible with your availability and speed up the process. Good luck.