I have seen this before when I was Hydro. Some of this info is stuff you know already so please do not let me insult your intelligence. The pump performance data is as follows: Eng Pumps 14.5 GPM with a pressure of 2900 to 3200 psi with the pump running at 2600 rpm Norm press, Max press is 3500 psi, LSGI 2550 psi. Therefore, with a range of 2900 to 3500 (max psi) you have 600 psi to play with. The Aileron Booster system has a pressure reducer on both sides (utility & Booster) that takes the pressure from 3000 to 2050 so there will be a lesser deflection that might be why the flux is smaller. I hope this helped and bleeding the X-miter would not hurt if it has been changed recently. Have a nice day.