Just bought the Pace 2 yesterday. Main purpose is to train MAF :D

MAF Test #3 Running Tangents

Understanding the Maffetone Method 13 Years Experience - RunToTheFinish

5km Race Prediction from Submax Performance Tests: A pilot study - Dr. Phil Maffetone

Not Progressing with MAF Low Heart Rate Training - extramilest

We're aware of the 80/20 principle - 80% of your runs easy, 20% hard.

This Life I Run – Tales of toddlers, twins and training

On Running and Not Running

MAF or Maffetone Training for Cycling - The Tall Cyclist

Overcoming frustrations with MAF low heart rate training - extramilest