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

Training (mostly) slow to race (kind of) fast, by Marco Altini

Run Training: Heart Rate, RPE, MAF, Power and Pace

Heart Rate Training For Runners: How It Works

Extramilest, Friends, I have been MAFfing for over 2 months now or may be more

Zone 2 Training For Beginners & Advanced Athletes

Focusing on heart rate, not pace, with MAF training - Canadian Running Magazine

MAF Training review – Part 2 My Experience – Big Red Running

MAF running training: what is it? - Kelly's world

MAF Training review – Part 4 The Myth of MAF – Big Red Running

MAF running for recovery – Boundless Runner

MAF Training, everything is connected - extramilest