Notes
After a stupidly slow warmup (over 10 minute pace was painful....but that's what I had to do to keep HR down running up to the park), trying to keep below 155 for the first 10' (and almost succeeding at that), the 5 mile MAF test went well. I actually averaged 160 for each of the 5 miles--woot!--and didn't go over 165. So while HR stayed constant, my pace dropped by a few seconds each mile (from 8:00 to 7:46)...not sure if this means anything, maybe that I wasn't quite warmed up?