67%

Okay, sure it's not a major milestone, but after it took me 5 weeks to write 10%, it's pretty cool that I wrote another 7% in 3 days.

And this is the 2/3 mark. I wrote the first 1/3 in about 10 weeks, and I'm still on that pace.
That would put me at the middle of August, but I might be able to finish sooner. My theory is now it's sort of like a puzzle, and once you get the outer frame, the inside's a lot easier to fill.