CRI
Out of interest, I have just completed a CRI course at a large commercial training organisation on the south coast.
I was fortunate to complete my course with another trainee (he was doing his full FI rating) which added some interesting additional elements, like assisting with mutual flying training etc. This greatly exceeded the number of flying hours before my flight test, even though I could not log any of it.
While it’s no were near as tough as for the full FI, it certainly is more challenging and deeper than I expected. A good CFI passionate about teaching ‘Instructional’ techniques is essential and the one I trained with was superb.
If you want any more details, please feel free to PM me.