Pressure range conflict between tire and rim
The answer from Maxxis support is about what I expected.  I am impressed that they responded and withing about a day.

Maxxis Support Team:


  The suggested pressure range is 30-60psi for most applications but you may find 
  your particular setup to be different. Rim internal width, rider weight, and 
  riding style determine the correct pressure. I would experiment with different
  pressures to achieve the tire characteristics that work for you.


I rode the tire at about 28 psi this weekend and it felt good.  Old tire still had tread but was hemorrhaging Stan's from the sidewalls and I could not longer keep up with it.