Well, I was only going to give the front and near back yard one more cut for the season. I ended up cutting it all. It wasn't really very thick at all because of the recent weather, but some of it was a bit tall. Especially the Bluegrass. The fescue is all but done for the year.
Even though it wasn't really tall, the fallen leaves made it easy to see where I hadn't yet cut. Made pretty quick work of it too. Done in 40 minutes, front and back.
Heart rate was 102 immediately after coming into the house and now three minutes later is down to 88 and falling. So recovery is still good on the half-dose of Metoprolol without it getting out of hand and racing. Don't feel winded either or I would have stopped. No dizziness or light-headedness either.
So far, so good.