Bleeding tip #1...
On a fresh install, bleed (cycle) the accumulator before doing your typical bench bleeding. As you will be pumping the pedal to do this, go ahead and hook up your bench bleeding lines and fill both sides of the bowl with fluid. When you pump down the acc, you will be bench bleeding at the same time.
I cannot strees enough that ALL THE AIR MUST BE REMOVED for the acc to function properly. Use a light to look into the fluid to see if there are any tiny air bubbles escaping from the return port (rear port). As the air is removed, the pump up time will be reduced.