Today I wrote GMAT for the second time and I nailed the beast!
780 (99%) V46 (99%) Q51 (99%)
Thanks to all of you in this great forum. Special thanks goes to Erin and 800Bob - this score would not be possible without their posts.
I am too excited to write a coherent debrief; I will post a detailed one in a couple of days. I am off to space out for the rest of the day!