Notes
Treadmill at work. A rather confused run. Did the usual first mile warmup and then did 1 mile at a treadmill setting of 9:40, with Garmin (foot pod) showing a pace of 9:24. Did a slow recovery mile. Then switched treadmills I hit the lap button to get a fresh lap (I was only .01 miles past the lap start anyway; shouldn't have bothered.) On this other treadmill I also set the pace to be 9:40 but it felt much easier and Garmin showed a pace of 9:43. This would seem to indicate that the speed of these two treadmills is different by about 19 seconds per mile. Also, the slow miles were a lot slower than the times indicated of 10:51, 10:40 and 10:33. The last two anyway were certainly over 11:19.
At the end I tried setting the incline to 4 and the pace to 9:00, but I'm not familiar with the console setup on this other treadmill and had the thing going at a pace of 7:40. Tried adjusting it while running at this incline and got it up to around 9:00 after a bit. Damn near killed myself doing it. Saw rather quickly that there was no way that I was going to be able to complete a lap at that incline/speed on my tired legs, so just hit the Stop button.
I find it interesting that on my first 9;40 lap (shown by Garmin as 9:24) my average heart rate was 126, whereas on the second treadmill my 9:40 lap (shown by Garmin as 9:43) my average heart rate was 121. Quite clearly I wasn't working as hard on the second treadmill, so I must have been going slower.