Is this how it works?
I just did a ride I did a week ago and my HR was 10 bpm slower on the climbs at the same pace and they just didn't feel quite as hard. My HR was also lower on the rest of the ride by 8-10bpm. This was a sudden and dramatic improvement.
Is this how it goes? No changes for a long time and then a sudden improvement?
I rode a reasonably fast century on Saturday (15 mph avg, 4500 feet), did a moderate ride yesterday when I first noticed the difference (35 mi, about 1000 feet), and a more hilly ride today (43 mi, 2100 feet).
I'm going to take tomorrow off. Both yesterday and today started off as recovery rides, but I was feeling pretty good so kept going.