Congratulations man

sounds very grueling.

What were some of the most advanced techniques you felt like you mastered that made you feel like you were ready as you were taking the test?

Was there anything unexpected / psychologically overwhelming he threw in?

For our JKD Phase 2 test our instructor had us grapple with two people at once (did not have any jiujitsu experience at that point) at the start to get rid of the nerves and excess energy, and we also did the u-drill blindfolded with a real knife lol. Was there anything like that in your black belt test?