Mine came at 12psi... It's at 25 now... Didn't like it that low

 

Thats the awsome thing about the ADII they are adjustable

 

what advantage does 25 psi give?

are there any downsides to going with a higher pressure setting?

If 25 psi is being used to compensate for flow would it be better to have an accumulator right before the inlet to the high pressure pump?