Maffetone Working

Good day today.  I have really tried hard to stick with a strict Maffetone method over the last few weeks and I think it is really starting to kick in.  After many days of 10:20 to 10:40 miles staying below my 124 aerobic macimum heart rate, I was able to go four of my seven miles today under 10:00 minutes while still staying under that 124.  And the other three miles were about 10:15 each (into a stiff wind).