hydraboost.........

[68protouring454]

guys got hydraboost on my shop car, at first i had the return t'd into the existing return which was kicking back the pedal, which i then installed a 2nd return in my reservoir above fluid level, as i heard the newer pumps have a few lbs pressure on the return which will get back to the hydraboost and cause issues.
now the car stops good, turns good but if you try to turn the wheel and stop, the hydraboost makes the steering wheel twitch, or almost like it consumes all the pressure for a split second so the steering has none?? do you guys follow me?
let me know what i can do
thanks