Tire pressure with latex tubes: higher, lower, the same?
I don't think your pressure should change based on tube material.


Raising pressure just means that you're subtracting out whatever benefit you're getting from latex.
Lowering pressure doesn't make sense because latex tubes are just as susceptible to pinch-flats as butyl tubes.


There are different schools of thought on what the "right" pressure is, regardless of tube material:


Use the highest pressure the tire is rated for, to maximize performance. I think this has been thoroughly debunked.
Use a pressure that gives you a certain "drop" (vertical deformation). The figure I've seen is 15% drop, which I think was first proposed by Frank Berto. This was thought to be a decent compromise between performance and comfort.
Use the lowest pressure that will avoid a pinch-flat, to maximize comfort.