• The Science of Foam: Explain that midsole foam needs "rest" to decompress, just like your muscles. If you run in the same EVA foam every day, it stays compressed and loses that "pop."
  • The Rotation Strategy:
    • The Daily Workhorse: Your comfortable, high-mileage shoe (e.g., Pegasus, Clifton).
    • The Speed Demon: Plated or lightweight foam for those interval days.
    • The Racer: The "illegal" super shoe you save for PB attempts.
  • The ROI: It sounds expensive to buy 3 pairs, but they last longer combined than buying one pair after another.