As soon as I'd posted it, I thought definitive was a poor choice of word. Although there are some issues, I agree about the rails (always out of scale and rarely a good idea at 1/1250, I think), it is a very impressive piece of modelling.

Not black rotors on RN Merlins is interesting. I must admit I had been caught out by that. Looking at photos, they all appeared black but, now I check again more carefully, I can see they are dark grey and just look dark against the background of the sky. I'll be reaching for a very small paint brush tomorrow morning.

All the photos are quite dark and I think the exposure is a bit off, fooled by the white background - maybe the rotors really are dark grey, and the F35s and ship closer to the correct colours.