Well, I once again did a basement gig. Just a bunch of 5 minute high cadence drills @ 100rpm with 3 minutes recovery @ 80rpm. Really took note of my heart rate today. It stayed pretty stable @ 85 - 87% during the hard efforts, and recovered to around 75% during the rest efforts. I do need to get a fan down there to help with cooling. I don't mind sweating, but sheesh I look like someone hit me with a firehose when I'm done.