Marked up the proof, corrected the file, and uploaded the new version. In about 48 hours, I should get the okay for another proof. This time I have the confidence to review the electronic proof, which should take less than a day, and then Blowing It! will be available for sale.
For those considering self-publishing, by the way, I highly recommend physical proof copies of your book before you go to press. They make correction much easier. Of course, if you are doing an eBook, you don't have the option, but you can always print out physcial pages. Expensive, but worth it.
My proof copy, on the other hand, cost less than $10 shipped, and I got it in less than a week. Thanks to that, I am nearly ready, just weeks from finishing writing the book, to go to press.
I hope you enjoy it!