That was less true after Bicocca, Phillius. They always were exceptionally sturdy and stubborn pikemen, and typically bested landsknechts in a straight fight, but they were no longer engaging in head-down, barrel ahead attacks like they did at Novara and Marignano.
Grafthomond’s number for the Swiss of 9/1 is quoted in Wood’s “The King’s Army.” He also mentions Landsknechts in the same period being 7/3.