Project X has the tip trimming instructions listed on website from 3 Iron – PW. It goes in half inch increments. Would I be correct to say that if I were building a Gap Wedge, Sand Wedge or Lob Wedge I would follow that half inch change?

The tipping instructions for PW is 4.5 inches. So would the Gap wedge be 5 inches or is 4.5 the max a person should tip trim the shaft?