yeah thats what i had to do, got thos crappy brackets that mount them at 45 degrees, did that, a shitload of air came out and they actually worked after that.
Ive got 4 pots on the front too mind you, full 2wd set up.
There cant be anymore air in the system

Pressure bled aswell!
Ive only got the compensators on mine, no load apportioning valves