I ran through it twice, first time 91 second time 90, score: 69,500. Midwit confirmed.

Weird. I got 87/100 and my score was 71,900.

I fumbled the Advanced at 14/20, but got 17/20 on each of the last 2 sections.

On my first run I aced all of the sections until the last and then I got some really weird ones (e.g. zenzizenzizenzic). When I ran it again I got 95% new words and I fumbled a couple in the earlier rounds but did a bit better on the final section.

No cheating, only one or two guesses both rounds in the final section. No idea how the scoring works.