After a quick and fun little camp-out this weekend, I was back at the floor project last night... and I kinda hit the first glitch. It wasn't really a surprise, that mysterious bump in the floor has been there forever (possibly 111 of the house's 112 years, I dunno). Anyway, a mild bout of stress, and hopefully that will all be resolved in the next coupla days.
In the meantime, more pulling staples, removing tack strips, and scraping underlay remnant for this girly girl! I am already enjoying how much greater the grates look against a wood floor.