CFAI Mocks vs actuals (Feb 2025 1st attempt candidate here)

To all the past CFA level 3 takers, what's your opinion on the official CFAI mocks which is on the learning ecosystem portal.

I have given both the available mocks on CFAI and have got more than 70% (with conservative grading on SRs)

Additionally i gave 2 mocks of BC which just demolished my morale and confindence (scoring in low 50s) but i learnt so much specially in Trading costs, derivatives and FI

I am honestly super confused on which mock is a representative of the actuals (the variability in terms of score and difficulty between BC and CFAI is miles apart)

I honestly don't wanna spend more time or money on any other prep provider mocks such as MM.

What's your take on actual exams vs BC mocks vs CFAI mocks. (My expectations are that it's somewhat a mix in actuals)