just run whatever seems to work good, I wheeled most of the hammers at 8psi but dropped it down to 3 on the last day halfway through wrecking ball and it made a huge difference. these tires didnt budge at all till they were under 8 new, now they are nice and soft and flexible.
here is me admiring the soft sidewalls-
![](http://i20.photobucket.com/albums/b225/nomayota/l_0baa10923aac79409514eb92c303f491.jpg)